Leviticus 4:1

Speak to the children of Israel, saying, 'If anyone sins unintentionally, in any of the things which Yahweh 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 blemish to Yahweh for a sin offering.