Allah's Apostle said, "May Allah's mercy be on him who is lenient in his buying, selling, and in demanding back his money."

Allah’s Apostle said, “Not to wish to be the like except of two men. A man whom Allah has given the (knowledge of the) Qur’an and he recites it during the hours of night and day and the one who wishes says: If I were given the same as this (man) has been given, I would do what he does, and a man whom Allah has given wealth and he spends it in the just and right way, in which case the one who wishes says, ‘If I were given the same as he has been given, I would do what he does.’ ”