Mukhtasar Muslim

Narrated from Abu Huraira (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: A Muslim has six rights over his Muslim brother. The people asked, "O Messenger of Allah! What are they?" He (peace be upon him) said: When you meet him, greet him with Salam; when he invites you, accept his invitation; when he seeks your advice, give him good advice; when he sneezes and says Alhamdulillah, respond to him (by saying Yarhamuk Allah); when he is ill, visit him; and when he dies, accompany his funeral.