Social exclusion represents one of the most pervasive and damaging forms of human relational harm. This article examines the phenomenon through two complementary lenses. It also considers Islam’s prophetic tradition—the hadith prohibiting two individuals from whispering together in the presence of a third. The hadith states that if three people are together, two should not speak privately. Doing so excludes the third person and makes him sad. This guidance emphasizes inclusion in conversations. Recent scientific evidence demonstrates that social exclusion activates the same neural substrates as physical pain, threatens fundamental psychological needs, and produces measurable consequences for mental health and social participation. This convergence suggests that the prophetic guidance articulated over fourteen centuries ago anticipated what modern empirical research has only recently confirmed.
The Hadith: Textual Foundations
The hadith under consideration appears in several of the most authoritative collections of prophetic tradition. In Sahih al-Bukhari and Sahih Muslim, the narration from Abdullah ibn Mas‘ood states that the Messenger of Allah said: “If you are three, two should not converse privately to the exclusion of the other one until you join some other people, so that it does not make him sad”. Sunan Ibn Majah includes the explicit clause identifying the emotional consequence: “because that makes him sad”.
The prohibition is remarkably specific in its scope. It applies when exactly three individuals are present. The Islamic legal scholars inferred that with four or more people, private conversation between two does not necessarily produce the same exclusionary effect, as the remaining individuals can converse among themselves. This contextual precision reflects a sophisticated understanding of group dynamics that modern social psychology has corroborated: the experience of exclusion is most acute when one is the sole outsider observing the formation of a dyadic bond.
The scholars of hadith commentary identified two primary reasons for the prohibition. Al-Khattabi explained that the excluded person may suspect a whispered plot against him. He may also feel that others regard him as less worthy than the other two, which causes sadness. This dual explanation anticipates modern findings about the cognitive and emotional mechanisms through which ostracism produces its harmful effects.
Scholars interpret the prohibition to mean that the act is haram, unless the excluded person grants permission or there is a necessity that outweighs the negative consequences.
Social Exclusion: Definitions and Dimensions
Social exclusion is a multidimensional concept that has resisted simple definition. The British Journal of Psychiatry’s major conceptual review notes that social exclusion has no single accepted definition, while most definitions emphasise lack of participation in social activities as the core characteristic. Social exclusion spans a continuum from full inclusion to complete exclusion, unlike poverty, which is measured against a defined threshold.
Scholars trace the modern concept’s origins to Lenoir’s 1974 work on ‘les exclus’. Within European social policy, the term came to denote a “rupture of the social bond” considered central to the social contract between the state and its citizens.
Several dimensions are commonly identified in the literature. These include material deprivation (income poverty, inadequate housing), relational exclusion (lack of social contacts, isolation), and civic exclusion (lack of access to services, political participation). Scholars have criticized how the mental health literature defines and measures social exclusion, even though the concept is widely used.
Neuroscientific Evidence: The Pain of Exclusion
The most striking scientific validation of the hadith’s emphasis on the emotional harm of exclusion comes from neuroimaging research. Eisenberger, Lieberman, and Williams (2003) conducted a landmark fMRI study examining the neural correlates of social exclusion. Researchers scanned participants as they played a virtual ball-tossing game, then manipulated the game to exclude the participant. The results showed the anterior cingulate cortex (ACC) was more active during exclusion than inclusion. Moreover, ACC activity correlated positively with participants’ self-reported distress.
This finding led the researchers to propose that “the brain bases of social pain are similar to those of physical pain”. The activation of the ACC during social exclusion suggests that the human brain processes social rejection using some of the same neural circuitry that evolved to signal physical injury. The overlap may explain why people experience social exclusion as both a cognitive judgment and a visceral, painful event.
Further research confirmed that the right ventral prefrontal cortex (RVPFC) was active during exclusion and correlated negatively with self-reported distress. The ACC changes mediated the RVPFC-distress correlation, suggesting that RVPFC regulates the distress of social exclusion by disrupting ACC activity. This neural architecture implies that while the pain of exclusion is automatic and deeply felt, the brain also possesses mechanisms for modulating that pain.
Psychological Consequences of Ostracism
The literature on ostracism shows extensive evidence of consequences. According to the temporal need-threat model proposed by Williams, ostracism threatens four fundamental psychological needs: belonging, self-esteem, control, and meaningful existence.
Recent research by Büttner and colleagues, using experience sampling methods to track ostracism in daily life, found that people report being ostracized an average of two to three times per week. Two complementary studies—one using event-contingent sampling over 14 days (N = 323, 1,107 ostracism experiences) and another using time-signaling sampling over 7 days (N = 272, 7,943 assessments including 767 ostracism experiences)—confirmed this frequency. The researchers identified three broad categories of responses to ostracism: prosocial behavior (attempting to reconnect), withdrawal (isolating oneself), and antisocial behavior (anger and aggression).
A novel framework emerging from this research proposes that behavioral reactions depend on need-threat levels. When psychological needs are severely threatened, individuals react to everyday ostracism with avoidance and antisocial inclinations. Conversely, when needs are threatened to a lesser extent, individuals are more likely to adopt approach behaviors such as prosocial behavior or connecting with others.
The connection between social exclusion and mental health is bidirectional. The British Journal of Psychiatry review noted that people with mental illness are frequently subject to social exclusion, but also that exclusion itself contributes to the development and perpetuation of mental distress.
The Hadith in Light of Scientific Evidence
The convergence between the prophetic prohibition of whispering and contemporary scientific findings is striking. Several specific points of correspondence merit attention.
First, the hadith identifies the emotional consequence of exclusion with the Arabic term ḥuzn, which encompasses sadness, grief, and sorrow. The scientific literature confirms that ostracism produces genuine emotional distress that is not merely imagined or exaggerated. The fMRI evidence demonstrating ACC activation during exclusion provides a neurobiological substrate for the sadness the Prophet ﷺ described.
Second, the hadith’s specificity regarding the number three—and the scholars’ clarification that the prohibition does not apply with four or more—reflects an understanding of the social dynamics of exclusion. When one person is the sole outsider observing a dyadic interaction, the exclusion is complete and unambiguous. The scholars explained that with a fourth person present, “the third person will be comforted by the presence of the fourth and will not fear any harm to himself from the other two”. This contextual precision aligns with research showing that the intensity of ostracism’s effects depends on the structure of the social situation.
Third, the scholars’ explanation that the excluded person may suspect the whispered conversation concerns a plot against him or may feel less worthy captures the cognitive and self-evaluative dimensions of ostracism that modern research has identified. Ostracism threatens not only belonging but also self-esteem and control. The Prophet’s prohibition addresses both the reality of exclusion and its subjective interpretation.
Convergence Between Hadith and Scientific Evidence
| Hadith Element | Scientific Corroboration | Source |
|---|---|---|
| Exclusion causes sadness (ḥuzn) | ACC activation during exclusion correlates with distress | Eisenberger et al., 2003 |
| Prohibition specific to three persons | Exclusion most acute when one is sole outsider | Williams’ need-threat model |
| Fear of conspiracy or feeling less worthy | Ostracism threatens belonging, self-esteem, control | Büttner et al., 2025 |
| Prohibition of whispering | Ostracism occurs through verbal and non-verbal cues | Daily life experience sampling |
Behavioral Responses to Ostracism in Daily Life
The experience sampling research by Büttner and colleagues provides particularly valuable insights into how individuals respond to ostracism in natural settings. Unlike laboratory experiments that capture immediate reactions in controlled conditions, experience sampling captures responses as they unfold in real-world contexts.
The findings reveal that ostracism occurs across a range of contexts and relationships. It is not confined to strangers or casual acquaintances but occurs in close relationships, workplaces, and family settings. The sources of ostracism are diverse, and the experience itself varies in intensity and duration.
The behavioral framework emerging from this research reconciles previously mixed findings about ostracism’s effects. Some laboratory studies suggested that ostracism leads to aggression, while others found prosocial responses. The experience sampling data suggests that both patterns occur, depending on the severity of need threat. Mild need threat prompts approach behaviors aimed at reconnection; severe need threat prompts avoidance and antisocial inclinations.
This framework has important implications for understanding the hadith’s guidance. The prohibition of whispering in the presence of a third person addresses a situation that is likely to produce at least moderate need threat. The excluded individual is acutely aware of being left out but may not experience the severe threat that produces withdrawal or aggression. The guidance aims to prevent the sadness that arises from this exclusion, aligning with the observation that even mild ostracism produces measurable distress.
Key Scientific Findings on Social Exclusion and Ostracism
| Study | Method | Key Finding |
|---|---|---|
| Eisenberger et al., 2003 | fMRI | ACC activation during exclusion parallels physical pain processing |
| Büttner et al., 2025 | Experience sampling (2 studies) | Ostracism occurs 2–3 times weekly; responses vary by need-threat level |
| Morgan et al., 2007 | Conceptual review | Social exclusion lacks single definition; emphasises lack of social participation |
| Büttner, 2025 | Methodological review | Experience sampling captures immediate effects of ostracism in daily life |
Implications for Community Life and Wellbeing
The hadith’s prohibition carries practical implications for community life that extend beyond the specific scenario of three people conversing. The principle at stake is the obligation to be mindful of the emotional impact of one’s social behavior on others. In the Islamic ethical framework, this connects to the broader obligation of maintaining social harmony and avoiding harm to fellow believers.
Contemporary research on social capital and community cohesion supports the intuition that inclusive social practices strengthen collective wellbeing. Social exclusion, conversely, imposes costs not only on excluded individuals but on communities as a whole. The erosion of social trust and the weakening of social bonds that result from exclusion diminish the capacity of communities to function effectively.
The scholars of hadith noted that the prohibition applies specifically to whispering (tanājī) because of its unique capacity to generate suspicion and hurt. Whispering is inherently exclusionary when practiced in the presence of a third person; it creates an audible but unintelligible signal that the excluded person is not privy to the conversation. The sound of whispering, even without understanding its content, communicates exclusion more powerfully than silence or ordinary conversation.
The exceptions to the prohibition identified by scholars—permission of the excluded person, necessity, and situations with four or more individuals—reflect a nuanced understanding of social dynamics. Permission removes the exclusionary sting because the excluded person is a voluntary participant in the arrangement. Necessity acknowledges that practical considerations may sometimes override the general principle. The four-person exception recognises that the presence of multiple conversational possibilities dilutes the exclusionary effect.
Scholarly Rulings on the Prohibition of Private Conversation
| Scenario | Ruling | Rationale |
|---|---|---|
| Three persons, two whisper | Prohibited (haram) | Causes sadness to the excluded person |
| Four or more, two whisper | Permissible | Excluded persons are not isolated; no fear of harm |
| Third person gives permission | Permissible | Exclusion is voluntary; no sadness caused |
| Necessity (e.g., urgent instruction) | Permissible | Necessity outweighs negative consequences |
Conclusion
The prophetic prohibition of two individuals whispering together to the exclusion of a third, recorded in the most authoritative collections of Islamic tradition, articulates a principle of social inclusion that modern science has only recently begun to fully appreciate. Neuroimaging research demonstrates that social exclusion activates the same brain regions associated with physical pain. Psychological research shows that ostracism threatens fundamental human needs and produces measurable consequences for mental health and social participation. Experience sampling research reveals that ostracism occurs with surprising frequency in daily life and produces behavioral responses that vary with the severity of need threat.
The hadith’s specific concern—that exclusion causes sadness—is validated by empirical evidence at every level of analysis, from neural activation to self-reported distress to behavioral outcomes in natural settings. The prophetic guidance, articulated in seventh-century Arabia, anticipated what contemporary science has confirmed: that the need to belong is fundamental to human wellbeing, and that social exclusion constitutes a genuine harm that communities have a moral obligation to prevent.
References
- Eisenberger NI, Lieberman MD, Williams KD. Does Rejection Hurt? An fMRI Study of Social Exclusion. Science, 2003;302(5643):290-292.
- Büttner CM. Moving ostracism research from the lab into daily life using experience sampling. The Journal of Social Psychology, 2025;166:47-60.
- Büttner CM, Ren D, Stavrova O, Rudert SC, Williams KD, Greifeneder R. Ostracism in everyday life: A framework of threat and behavioral responses in real life. Journal of Personality and Social Psychology, 2025;129(5):870-887.
- Morgan C, Burns T, Fitzpatrick R, Pinfold V, Priebe S. Social exclusion and mental health: conceptual and methodological review. British Journal of Psychiatry, 2007;191:477-483.
- Sahih Muslim, Book 39, Hadith 5694.
- Islam Question & Answer. Rulings and issues having to do with private conversations.
