Musnad Abu Ya'la al-Mawsili 155:328

Abu Khaythama narrated to us, Jarir narrated to us, from Fudayl ibn Ghazwan, from Abu Hazim, from Abu Hurayrah, who said: A man came to the Messenger of Allah (may Allah bless him and grant him peace) and said: "I am exhausted [from hunger]." So he sent [a messenger] to some of his wives, and she said: "By the One who sent you with the truth, I have nothing but water." Then he sent [a messenger] to another, and she said the same thing, until all of them said the same thing: "No, by the One who sent you with the truth, I have nothing but water." Then he said: "Who will host this [man] tonight?" A man from the Ansar stood up and said: "I will, O Messenger of Allah." He went with him to his dwelling and said to his wife: "Do you have anything?" She said: "No, except for the food of my children." He said: "Distract them with something, and when our guest enters, light the lamp and show him that we are eating. Then, when he reaches out to eat, stand up to the lamp and extinguish it." He said: So they sat down, and the guest ate. When morning came, he went to the Prophet (may Allah bless him and grant him peace), and he said: "Allah has marveled at what you two did tonight."