Sayyiduna Nu’man bin Bashir (may Allah be pleased with both of them) reports that the Messenger of Allah (peace and blessings be upon him) said: “The example of the mutual friendship and love among the believers is like a single body: when a part of it becomes ill, the whole body suffers from sleeplessness and fever. There is a piece of flesh in the body; when it is sound and healthy, the whole body remains safe, and when it becomes corrupt, the whole body becomes corrupt. Beware! That is the heart.”
Hadith Referenceمعجم صغير للطبراني / كتاب البر و الصلة / 1161
Hadith Gradingمحدثین:صحيح
Hadith Takhrij«صحيح ، أخرجه البخاري فى «صحيحه» برقم: 6011، ومسلم فى «صحيحه» برقم: 1599، 2586، وابن حبان فى «صحيحه» برقم: 233، 297، 721، 5569، والنسائي فى «الكبریٰ» برقم: 5200، 5997، وأبو داود فى «سننه» برقم: 3329، والترمذي فى «جامعه» برقم: 1205، والدارمي فى «مسنده» برقم: 2573، وابن ماجه فى «سننه» برقم: 3984، والبيهقي فى«سننه الكبير» برقم: 6523، وأحمد فى «مسنده» برقم: 18638، والحميدي فى «مسنده» برقم: 943، 944، 945، 947، والطبراني فى «الأوسط» برقم: 2264، 2472، 7729، 9003، والطبراني فى «الصغير» برقم: 382، وابن أبى شيبة فى «مصنفه» برقم: 22435»
Narrated An-Nu`man bin Bashir: Allah's Apostle said, "You see the believers as regards their being merciful among themselves and showing love among themselves and being kind, resembling one body, so that, if any part of the body is not well then the whole body shares the sleeplessness (insomnia) and fever with it."
Maulana Dawood Raz
Hadith Commentary: This should indeed be the characteristic of Muslims, but today this quality is completely rare. Now, there are no longer even two such Muslims to be found, that seeing one would make the other happy.
Source: Sahih Bukhari: Commentary by Maulana Dawood Raz, Page: 6011
Shaykh Abdul Sattar al-Hammad
Hadith Commentary: From this hadith, the greatness of the rights of Muslims, their mutual assistance, and their compassion for one another becomes evident—that they are like a single body (jism wahid), meaning that in hardship and ease, all the limbs of the body are in harmony with each other and invite one another to share in distress. This should be the characteristic of Muslims: that upon seeing any one Muslim afflicted with hardship, they become restless and eager to help him. However, in the present era, this precious quality is rare. And Allah knows best.
Source: Hidayat al-Qari: Commentary on Sahih Bukhari, Urdu, Page: 6011