SUNNAH RASULKU..

The Prophet (Sallahu Alaihi Wasallam) said:

"A Muslim has six obligations to another Muslim.

"To greet another Muslim when you meet him;
to respond when he invites you;
to give him your (sincerest) advice when he seeks it;
to say 'may Allah have mercy upon you'
when he sneezes and says ' may Allah be praised;
to visit him when he falls ill;
and when he dies, to attend his funeral." ………..♥

(Fiqh-us-Sunnah, Volume 4: Sickness, Expiation of Sins)