Leviticus 5:4, 17-18

“Or if you impulsively swear to do something, whether good or bad—some rash oath that just pops out—and you aren’t aware of what you’ve done at the time, but later you come to realize it and you’re guilty in any of these cases

“If anyone sins by breaking any of the commandments of GOD which must not be broken, but without being aware of it at the time, the moment he does realize his guilt he is held responsible. He is to bring to the priest a ram without any defect, assessed at the value of the Compensation-Offering.