Leviticus 5:18-19

Holman Christian Standard Bible

¹⁸ He must bring an unblemished ram from the flock according to your assessment of its value as a restitution offering to the priest. Then the priest will make atonement on his behalf for the error he has committed unintentionally, and he will be forgiven. ¹⁹ It is a restitution offering; he is indeed guilty before the Lord.”