Leviticus 5:14-16

14Then the Lord spoke to Moses, saying,

15“If a person commits a breach of faith and sins unintentionally against the holy things of the Lord, then he shall bring his guilt offering to the Lord, a ram without blemish from the flock, valued by you in shekels of silver, that is, the shekel of the sanctuary, as a guilt offering.

16He shall make restitution for the sin which he has committed against the holy thing, and shall add a fifth [of the ram’s value] to it, and give it to the priest. The priest shall then make atonement for him with the ram of the guilt offering, and he shall be forgiven.