וְ֠הֵבִיא אַ֣יִל תָּמִ֧ים מִן־הַצֹּ֛אן בְּעֶרְכְּךָ֥ לְאָשָׁ֖ם אֶל־הַכֹּהֵ֑ן וְכִפֶּר֩ עָלָ֨יו הַכֹּהֵ֜ן עַ֣ל שִׁגְגָת֧וֹ אֲשֶׁר־שָׁגָ֛ג וְה֥וּא לֹֽא־יָדַ֖ע וְנִסְלַ֥ח לֽוֹ׃
And he shall bring a ram without blemish out of the flock, according to thy valuation, for a guilt-offering, unto the priest; and the priest shall make atonement for him concerning the error which he committed, though he knew it not, and he shall be forgiven.
Read halakhic rulings (Jewish law) on Leviticus 5:18: and classical halakhic sources.