It is narrated from Sayyiduna Ghalib bin Duraykh (may Allah be pleased with him) that a man came to the Prophet (peace and blessings be upon him) and said: "O Messenger of Allah, famine has struck us, and the fat animals of our wealth are donkeys." He (peace and blessings be upon him) said: "Eat from the fat animals of your wealth; I only regarded as filthy for you, or he said: disliked for you, the animals of the village that eat filth (jallalah)."
Hadith Referenceالمعجم الكبير للطبراني / باب الغين / 15760