عَنْ أَبِي هُرَيْرَةَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: لِلْمُؤْمِنِ عَلَى الْمُؤْمِنِ سِتُّ خِصَالٍ: يَعُودُهُ إِذَا مَرِضَ وَيَشْهَدُهُ إِذَا مَاتَ وَيُجِيبُهُ إِذَا دَعَاهُ وَيُسَلِّمُ عَلَيْهِ إِذَا لَقِيَهُ وَيُشَمِّتُهُ إِذَا عَطَسَ وَيَنْصَحُ لَهُ إِذَا غَابَ أَوْ شَهِدَ «لَمْ أَجِدْهُ» فِي الصَّحِيحَيْنِ «وَلَا فِي كِتَابِ الْحُمَيْدِيِّ وَلَكِنْ ذَكَرَهُ صَاحِبُ» الْجَامِع بِرِوَايَة النَّسَائِيّ
Abu Hurairah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings of Allah be upon him) said: "A believer has six rights over another believer: When he falls ill, visit him; when he dies, attend his funeral; when he invites you, accept his invitation; when you meet him, greet him with salam; when he sneezes (and says Alhamdulillah), respond to him by saying Yarhamuk Allah; and wish well for him in his presence and in his absence." Its chain is Hasan. Narrated by al-Nasa'i and al-Tirmidhi. The author of Mishkat says: And I have not found it in the Sahihayn nor in the book of al-Humaydi, but the author of Jami' al-Usul (Ibn al-Athir) has mentioned it from the narration of al-Nasa'i.