Exodus 29:10-15

10And thou shalt present the bullock before the tent of meeting; and Aaron and his sons shall lay their hands upon the head of the bullock;

11and thou shalt slaughter the bullock before Jehovah, at the entrance of the tent of meeting;

12and thou shalt take of the blood of the bullock, and put it on the horns of the altar with thy finger, and shalt pour all the blood at the bottom of the altar.

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

14And the flesh of the bullock, and its skin, and its dung, shalt thou burn with fire outside the camp: it is a sin-offering.

15And thou shalt take one of the rams, and Aaron and his sons shall put their hands upon the head of the ram;