Leviticus 4:1

“Speak to the children of Israel, saying, ‘If anyone sins unintentionally, in any of the things which the LORD has commanded not to be done, and does any one of them,

if the anointed priest sins so as to bring guilt on the people, then let him offer for his sin which he has sinned a young bull without defect to the LORD for a sin offering.

He shall bring the bull to the door of the Tent of Meeting before the LORD; and he shall lay his hand on the head of the bull, and kill the bull before the LORD.