(32) باب إِكْرَامِ الضَّيْفِ وَفَضْلِ إِيثَارِهِ
Abu Huraira reported that a guest spent the night with a person from the Ansar who had nothing with him but food (sufficient) for his own self and his children. He said to his wife:
(Lull) the children to sleep, and put out the lamp, and serve the guest with what you have with you. It was on this occasion that this verse was revealed:" Those who prefer the needy to their own selves in spite of the fact that they are themselves in pressing need" (Lix. 9).
Reference: Sahih Muslim 2054 b
In-book reference: Book 36, Hadith 234
USC-MSA web (English) reference(deprecated numbering scheme): Book 23, Hadith 5101