Assalam alaikum, In the noble words of the Noble Messenger of Allah, Prophet Muhammad, Sallallahu alaihi Wasallam, "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 Muslim 2162) We should mind these Rights and be discharging them amongst us, brothers and sisters, so as to ensure durable/effective Brotherhood in Islam. Best Wishes.