The Book Pertaining to the Merits of the Companions (Allah Be Pleased With Them) of the Holy Prophet (May Peace Be Upon Him) (Kitab Al-Fada'il Al-Sahabah)

Muslim :: Book 31 : Hadith 6100

Anas reported that Allah's Messenger (may peace be upon him) sought forgiveness for the Ansar and he said: I think (he also sought forgiveness) for the children of the Ansar and the slaves and the freed men of the Ansar. I have no doubt about it.