Sayyiduna Abu Rafi' (may Allah be pleased with him) said: "I slaughtered a goat for the Messenger of Allah (peace and blessings be upon him) with a pointed piece of wood and roasted it. He (peace and blessings be upon him) ate from it, and he neither rinsed his mouth nor performed ablution."
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 941