Leviticus 4:19-21

Amplified Bible

¹⁹ He shall remove all its fat from the bull and offer it up in smoke on the altar. ²⁰ He shall also do with the bull just as he did with the bull of the sin offering; that is what he shall do with this. So the priest shall make atonement for [the sin of] the people, and they will be forgiven. ²¹ Then the priest is to bring the bull outside the camp and burn it as he burned the first bull; it is the sin offering for the congregation.