‏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....

‏السلام : Hadeeth No:5578 Abu Huraira reported Allaah's Messenger (may pace be upon him) as saying: A prostitute saw a dog moving around a well on a hot day and hanging out its tongue because of thirst. She drew water for it in her shoe and she was pardoned (for this act of hers)....