וְכִפֶּ֣ר הַכֹּהֵ֗ן עַֽל־כָּל־עֲדַ֛ת בְּנֵ֥י יִשְׂרָאֵ֖ל וְנִסְלַ֣ח לָהֶ֑ם כִּֽי־שְׁגָגָ֣ה הִ֔וא וְהֵם֩ הֵבִ֨יאוּ אֶת־קָרְבָּנָ֜ם אִשֶּׁ֣ה לַֽיהוָ֗ה וְחַטָּאתָ֛ם לִפְנֵ֥י יְהוָ֖ה עַל־שִׁגְגָתָֽם׃
And the 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 unto the LORD, and their sin-offering before the LORD, for their error.
Read halakhic rulings (Jewish law) on Numbers 15:25: and classical halakhic sources.