Prophet Muhammad (SAS) Said,
A Muslim has SIX rights on another Muslim
1 When you meet him, greet him with salaam.
2 When he invites you, accept the invitation.
3 When he seeks counselling from you, advise him.
4 When he sneezes and says Alhamdulillah,
reply with Yarhamkumullah.
5 When he falls ill, visit him.
6 When he dies, attend his funeral.