Numbers 8:9

וְכֹֽה־תַעֲשֶׂה לָהֶם לְטַֽהֲרָם הַזֵּה עֲלֵיהֶם מֵי חַטָּאת וְהֶעֱבִירוּ תַעַר עַל־כָּל־בְּשָׂרָם וְכִבְּסוּ בִגְדֵיהֶם וְהִטֶּהָֽרוּ

And thus shalt thou do unto them, to cleanse them: sprinkle the water of purification upon them, and let them cause a razor to pass over all their flesh, and let them wash their clothes, and cleanse themselves.

וְלָֽקְחוּ פַּר בֶּן־בָּקָר וּמִנְחָתוֹ סֹלֶת בְּלוּלָה בַשָּׁמֶן וּפַר־שֵׁנִי בֶן־בָּקָר תִּקַּח לְחַטָּֽאת

Then let them take a young bullock, and its meal-offering, fine flour mingled with oil, and another young bullock shalt thou take for a sin-offering.

וְהִקְרַבְתָּ אֶת־הַלְוִיִּם לִפְנֵי יְהוָה וְסָמְכוּ בְנֵי־יִשְׂרָאֵל אֶת־יְדֵיהֶם עַל־הַלְוִיִּֽם

And thou shalt present the Levites before the LORD; and the children of Israel shall lay their hands upon the Levites.

וְהֵנִיף אַהֲרֹן אֶת־הַלְוִיִּם תְּנוּפָה לִפְנֵי יְהוָה מֵאֵת בְּנֵי יִשְׂרָאֵל וְהָיוּ לַעֲבֹד אֶת־עֲבֹדַת יְהוָֽה

And Aaron shall offer the Levites before the LORD for a wave-offering from the children of Israel, that they may be to do the service of the LORD.