Leviticus 4:2; Leviticus 4:3

2 "Speak to the people of Israel, saying, If anyone sins unintentionally in any of the LORD's commandments about things not to be done, and does any one of them,

3 if it is the anointed priest who sins, thus bringing guilt on the people, then he shall offer for the sin that he has committed a bull from the herd without blemish to the LORD for a sin offering.