Numbers 15:24-25

24and if it was done unintentionally without the knowledge of the congregation, then the whole congregation is to prepare one young bull as a burnt offering, a pleasing aroma to the LORD, with its grain offering and drink offering according to the regulation, and one male goat as a sin offering.

25The priest is to make atonement for the whole congregation of Israel, so that they may be forgiven; for the sin was unintentional and they have brought to the LORD a food offering and a sin offering, presented before the LORD for their unintentional sin.