What did the Prophet Muhammad (saw) say in response to someone saying that Allah had forgiven him of all his faults?
 Narrated Al-Mughira:                     The Prophet used to offer night prayers till his feet became swollen. Somebody said, to him," "Allah has forgiven you, your faults of the past and those to follow." On that, he said, "Shouldn't I be a thankful slave of Allah)?"