Leviticus 4:1

1The LORD spoke to Moses, saying,

2“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,

3if 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.