Sayyiduna Ghalib bin Abjar (may Allah be pleased with him) says: We were struck by a year of famine, and I had nothing with which to feed my family except donkeys, while the Prophet (peace and blessings be upon him) had forbidden the meat of domestic donkeys. I came to the Prophet (peace and blessings be upon him) and said: In this time of famine I have nothing with which to feed my family except donkeys, whereas you (peace and blessings be upon him) have forbidden eating the meat of domestic donkeys. He (peace and blessings be upon him) said: "Feed your family the meat of your donkeys; I only declared them unlawful because of the donkeys that roam about the town (eating filth)."
There is disagreement about the chain of this hadith, and the like of it cannot be set against the authentic hadiths, already mentioned, which explicitly declare the meat of domestic donkeys unlawful.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19471