‏الأيمان : Hadeeth No:4100 Abu Huraira reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: When a slave fulfils obligation of Allaah and obligation of his master, he has two rewards for him. I narrated this to Ka'b, and Ka'b said: (Such a slave) has no accountability, nor has a poor believer....

‏الإيمان : Hadeeth No:215 This hadith has been narrated on the authority of Anas b. Malik by another chain of transmitters in which these words are found: Thabit b. Qais was the orator of the Ansar, when this verse was revealed: the rest of the hadith is the same with the exception that there is no mention of Sa'd b. Mu'adh ...