Leviticus 5:14-16

14Adonai spoke to Moses, saying:

15“If anyone commits a faithless act and sins unwittingly against the holy things of Adonai, then he is to bring his trespass offering to Adonai: a ram without blemish from the flock, according to your value in silver shekels after the shekel of the Sanctuary, for a trespass offering.

16He is to make restitution for that which he has done wrong in regard to the holy thing, and is required to add a fifth part to it, and give it to the kohen. So the kohen will make atonement for him with the ram of the trespass offering—and he will be forgiven.