Exodus 29:10-18

10“Bring the bull to the front of the tent of meeting, and Aaron and his sons shall lay their hands on its head. 11Slaughter it in the LORD ’s presence at the entrance to the tent of meeting. 12Take some of the bull’s blood and put it on the horns of the altar with your finger, and pour out the rest of it at the base of the altar. 13Then take all the fat on the internal organs, the long lobe of the liver, and both kidneys with the fat on them, and burn them on the altar.

14But burn the bull’s flesh and its hide and its intestines outside the camp. It is a sin offering. Or purification offering; also in verse 36 15“Take one of the rams, and Aaron and his sons shall lay their hands on its head. 16Slaughter it and take the blood and splash it against the sides of the altar. 17Cut the ram into pieces and wash the internal organs and the legs, putting them with the head and the other pieces.

18Then burn the entire ram on the altar. It is a burnt offering to the LORD, a pleasing aroma, a food offering presented to the LORD .