Sayyiduna Abu Salit (may Allah be pleased with him), who was a Companion who fought at Badr, said: The prohibition from the Messenger of Allah (peace and blessings be upon him) against eating the meat of donkeys came to us while the cooking pots were boiling with it, so we turned them over.
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 576