A man came to the Prophet (ﷺ) (as a guest), so he sent a Messenger (ﷺ) to his wives (to bring something for that man to eat) but they said that they had nothing except water. Then Allâh's Messenger (ﷺ) said, "Who will take this (person) or entertain him as a guest?" A man from the Ansar (supporters) said, I." So he took him to his wife and said to her, "Entertain generously the guest of Allah's Messenger (ﷺ) " " She said, "We have got nothing except the meals of my children." He said, "Prepare your meal, light your lamp and let your children sleep if they ask for supper." So she prepared her meal, lighted her lamp and made her children sleep and then stood up pretending to mend her lamp, but she put it off. Then both of them pretended to be eating, but they really went to bed hungry. In the morning the went to Allâh's Messenger (ﷺ) who said, "Tonight Allâh laughed or wondered at your action." Then Allâh revealed: " And (they) give them [Muhajirûn (emigrants)] preference over themselves even though they were in need of that. And whosoever is saved from his own covetousness, such are they who will be the successful." (V.59:9) [5:142-O.B]