Leviticus 4:1-4

1Then the Lord spoke to Moses, saying,

2“Speak to the children of Israel, ‘If a person sins unintentionally in any of the things which the Lord has commanded not to be done, and commits any of them—

3if the anointed priest sins, bringing guilt on the people, then he shall offer to the Lord a young bull without blemish as a sin offering for the sin he has committed.

4He shall bring the bull to the doorway of the Tent of Meeting before the Lord, and shall lay his hand on the bull’s head [transferring symbolically his guilt to the sacrifice] and kill the bull before the Lord.