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.