וְהַנּוֹתָ֗ר בַּשֶּׁ֙מֶן֙ אֲשֶׁר֙ עַל־כַּ֣ף הַכֹּהֵ֔ן יִתֵּ֖ן עַל־רֹ֣אשׁ הַמִּטַּהֵ֑ר וְכִפֶּ֥ר עָלָ֛יו הַכֹּהֵ֖ן לִפְנֵ֥י יְהוָֽה׃
And the rest of the oil that is in the priest’s hand he shall put upon the head of him that is to be cleansed; and the priest shall make atonement for him before the LORD.
Read halakhic rulings (Jewish law) on Leviticus 14:18: and classical halakhic sources.