Leviticus 4:3
For the Priest
4:3 “‘If the high priest sins so that the people are guilty, on account of the sin he has committed he must present a flawless young bull to the Lord for a sin offering.
Leviticus 4:12
4:12 all the rest of the bull – he must bring outside the camp to a ceremonially clean place, to the fatty ash pile, and he must burn it on a wood fire; it must be burned on the fatty ash pile.
Leviticus 9:2
9:2 and said to Aaron, “Take for yourself a bull calf for a sin offering and a ram for a burnt offering, both flawless, and present them before the Lord.