10You are to present the bull at the front of the Tent of Meeting, and Aaron and his sons are to lay their hands on its head.
11And you shall slaughter the bull before the LORD at the entrance to the Tent of Meeting.
12Take some of the blood of the bull and put it on the horns of the altar with your finger; then pour out the rest of the blood at the base of the altar.
13Take all the fat that covers the entrails and the lobe of the liver, and both kidneys with the fat on them, and burn them on the altar.
14But burn the flesh of the bull and its hide and dung outside the camp; it is a sin offering.
— Exodus 29:10-14