It is narrated from Sayyiduna Suhaib (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: I am amazed at the affair of the believer, for verily all of his affair is good, and this is for no one except the believer. If something pleasing happens to him and he is grateful, then that is good for him; and if something harmful befalls him and he is patient, then that is good for him.