Leviticus 6:5-7

5or anything about which he swears falsely. He must restore it in full and add one fifth to it; he must give it to its owner when he is found guilty.

6Then he must bring his guilt offering to the Lord, a flawless ram from the flock, convertible into silver shekels, for a guilt offering to the priest.

7So the priest will make atonement on his behalf before the Lord and he will be forgiven for whatever he has done to become guilty.”