Anas narrated that someone offered a roasted head of lamb to one of the companions of the Prophet, but he turned it down and asked him to give it to someone else who needed it more than his family. The man took the head of lamb to the other person, but he asked that it be given to someone else, too. This was repeated with seven other people until it was finally given to the first man to whom it was originally offered. Then the following verse was revealed
“But give them preference over themselves, even though poverty was their (own lot). And those saved from the covetousness of their own souls, -they are the ones that achieve prosperity.” [The Holy Quran: Hashr 59:9]