Leviticus 5:16-18

MSB(i) 16 Regarding any holy thing he has harmed, he must make restitution by adding a fifth of its value to it and giving it to the priest, who will make atonement on his behalf with the ram as a guilt offering, and he will be forgiven. 17 If someone sins and violates any of the LORD’s commandments even though he was unaware, he is guilty and shall bear his punishment. 18 He is to bring to the priest an unblemished ram of proper value from the flock as a guilt offering. Then the priest will make atonement on his behalf for the wrong he has committed in ignorance, and he will be forgiven.