‏الأيمان : Hadeeth No:4108 Abu Huraira reported Allaah's Prophet (sallAllaahu alayhi wa sallam) as saying: In case the slave is owned by two persons, and one of them emancipates him, he will guarantee (his full freedom)....

‏الإيمان : Hadeeth No:409 Abdullah b. al-Harith reported: I heard Abbas say: I said: Messenger of Allaah, verily Abu Talib defended you and helped you; would it be beneficial for him? He (the Prophet) said: Yes; I found him in the lowest part of the Fire and I brought him to the shallow part....