BismillahhiAllahuakbar..
 
On the authority of Abu Hurairah (may Allah be pleased with him), the Messenger of Allah (peace and blessings be on him) said : The right of the Muslim on the Muslim are six.  It was said, What are they, Messenger of Allah?
He said,
    1. When you meet him,  salute him;
    2. when he invites you,  respond to him;
    3. when he seeks counsel, give him advice;
    4. when he sneezes and praises Allah, say to him: Allah has mercy on you;
    5. when he is sick, visit him;
    6. and when he dies, follow his funeral.
(Muslim)