Exodus 29:14 in the World English Bible
But the meat of the bull, and its skin, and its dung, you shall burn with fire outside of the camp. It is a sin offering.
Context
13 And thou shalt take all the fat that covereth the inwards, and the caul that is above the liver, and the two kidneys, and the fat that is upon them, and burn them upon the altar.
14 But the flesh of the bullock, and his skin, and his dung, shalt thou burn with fire without the camp: it is a sin offering.
15 Thou shalt also take one ram; and Aaron and his sons shall put their hands upon the head of the ram.