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 4:21

4:21 He must bring the rest of the bull outside the camp and burn it just as he burned the first bull – it is the sin offering of the assembly.