Exodus 29:10-14

10And thou shalt cause a bull to be brought before the tabernacle of the congregation: and Aaron and his sons shall put their hands upon the head of the bull.

11And thou shalt kill the bull before the LORD, by the door of the tabernacle of the congregation.

12And thou shalt take of the blood of the bull, and put it upon the horns of the altar with thy finger, and pour all the blood beside the bottom of the altar.

13And thou shalt take all the fat that covereth the inwards, and the fat that is above the liver, and the two kidneys, and the fat that is upon them, and burn them upon the altar.1

14But the flesh of the bull, and his skin, and his dung, shalt thou burn with fire outside the camp: it is a sin offering.