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 6094
Abu Musa reported that Allah's Messenger (may peace be upon him) said: When the Ash'arites run short of provisions in the campaigns or run short of food for their children in Medina they collect whatever is with them in the cloth and then partake equally from one vessel. They are from me and I am from them.