Musannaf Ibn Abi Shayba 16:105

Abu Bakr narrated to us, he said: al-Fadl ibn Dukayn narrated to us, from Yunus ibn Abi Ishaq, he said: Abu al-Wadak narrated to us, he said: Abu Sa’id al-Khudri narrated to us, from the Prophet, peace be upon him, that he passed by pots while they were boiling. He said to us: "What is this?" We said: "Meat of donkeys." He said to us: "Are the donkeys domestic or wild?" We said: "No, rather domestic." He said: "Then overturn them." He said: "So we overturned them, while we were hungry and craving it."