Numbers 15:24-25

24then it shall be, if it is done 1unintentionally, 2without the knowledge of the congregation, that all the congregation shall offer one bull as a burnt offering, as a soothing aroma to the Lord, 3with its grain offering and its drink offering, according to the ordinance, and one male goat as a sin offering.

25Then 4the priest shall make atonement for all the congregation of the sons of Israel, and they will be forgiven; for it was an unintentional wrong, and they have brought their offering, an offering by fire to the Lord, and their sin offering before the Lord, for their unintentional wrong.