Whoever causes harm will be harmed by Allah, and whoever causes hardship will be put in hardship by Allah A man follows the religion (i.e. ways and manners) of his close friend. So, each of you should carefully consider whom he takes as his intimate friend I am not responsible for any Muslim who stays among the polytheists I will certainly expel the Jews and the Christians from the Arabian Peninsula until only Muslims are left in it The Muslim's right over his fellow Muslim is six." It was said: 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 praises Allah, say Tasmīt to him; when he falls sick, visit him; and when he dies, follow him