Leviticus 4:13-14

13 a“If the whole congregation of Israel sins unintentionally
Or makes a mistake
and cthe thing is hidden from the eyes of the assembly, and they do any one of the things that by the Lord’s commandments ought not to be done, and they realize their guilt,
Or suffer for their guilt, or are guilty; also verses 22, 27, and chapter 5
14 ewhen the sin which they have committed becomes known, the assembly shall offer a bull from the herd for a sin offering and bring it in front of the tent of meeting.

Numbers 15:24-25

24then if it was done unintentionally fwithout the knowledge of the congregation, all the congregation shall offer one bull from the herd for a burnt offering, a pleasing aroma to the Lord, gwith its grain offering and its drink offering, according to the rule, and hone male goat for a sin offering. 25 iAnd the priest shall make atonement for all the congregation of the people of Israel, and they shall be forgiven, because it was a mistake, and they have brought their offering, a food offering to the Lord, and their sin offering before the Lord for their mistake.
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