Sayyiduna Abu Rafi' (may Allah be pleased with him) said: "I bear witness that I used to roast the belly of a goat for the Messenger of Allah (peace and blessings be upon him); he (peace and blessings be upon him) would eat from it, then pray and not perform ablution."
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 977