It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him): the Prophet (peace and blessings be upon him) said: "A believer has six rights over another believer: when he meets him, he greets him with salam; when he sneezes, he responds to his sneeze; when he invites him, he accepts the invitation; when he is ill, he visits him; when he dies, he attends his funeral; and when he is absent, he wishes him well."