Assalam alaikum,
The Noble Messenger of Allah, Prophet Muhammad, may Allah bless him and grant him peace, said:--"A Muslim has 6 Rights over another Muslim. They ( his companions) asked: What are they, O Messenger of Allah? He said:--

    "When you meet him, greet him with peace.
     When he invites you, accept his invitation
    When he seeks your advice, advise him
    When he sneezes and then Praises Allah, invoke Allah's blessings upon him.
   When he falls ill, visit him.
   When he dies, follow his funeral." (Sahih Bukhari-2162)

We should, therefore, mind these Rights and be discharging them amongst us, Muslim Brothers and Sisters accordingly please.
Many Regards.