Numbers 15:24-26

²⁴then it shall be, if it was done unwittingly, without the knowledge of the congregation, that all the congregation shall offer one young bull for a burnt offering, for a pleasant aroma to the LORD, with its meal offering and its drink offering, according to the ordinance, and one male goat for a sin offering.

²⁵The priest shall make atonement for all the congregation of the children of Israel, and they shall be forgiven; for it was an error, and they have brought their offering, an offering made by fire to the LORD, and their sin offering before the LORD, for their error.

²⁶All the congregation of the children of Israel shall be forgiven, as well as the stranger who lives as a foreigner amongst them; for with regard to all the people, it was done unwittingly.