Sunan Ibn Majah, Chapter: The Chapters on Ascetism (Zuhd)

that Aishah said: "There would come a month when no smoke was seen in any of the households of the family of Muhammad (saw). I said: "What did you eat?" She said: "The two black ones - dates and water." But we had neighbors among the Ansar, sincere neighbors, who had domestic sheep, and they used to send some of their milk to us. (One of the narrators) Muhammad said: "And they were nine households."