The LORD said to Moses,
Whenever you commit wrongdoing, unintentionally sinning against any of the LORD's holy things, you must bring to the LORD as your compensation a flawless ram from the flock, its value calculated in silver shekels according to the sanctuary's shekel, as a compensation offering.
You will make amends for the way you have sinned against the holy thing: you will add one-fifth to its value and give it to the priest. Then the priest will make reconciliation for you with the ram for the compensation offering, and you will be forgiven.
If you sin by breaking any of the LORD's commands, but without realizing it, doing something that shouldn't be done, and then become guilty and liable to punishment,
you must bring a flawless ram from the flock, at the standard value, as a compensation offering to the priest. The priest will make reconciliation for you for the unintentional fault that you committed, even though you didn't realize it, and you will be forgiven.
It is a compensation offering. You have definitely become guilty before the LORD.