It is narrated from a companion of Banu Sulayt, who says: I came to the Noble Prophet (peace and blessings be upon him), while he (peace and blessings be upon him) was sitting among a group of people. I heard him (peace and blessings be upon him) saying: A Muslim is the brother of a Muslim; he does not oppress him, nor does he abandon him helpless. Piety is here. The narrator Hammad said: And he (peace and blessings be upon him) pointed towards his blessed chest. When two people love each other for the sake of Allah Almighty and then separation occurs between them, its cause is a sin, which one of the two commits. And sin is evil, sin is evil, sin is evil.