Leviticus 16:3

וַיְדַבֵּר יְהוָה אֶל־מֹשֶׁה אַחֲרֵי מוֹת שְׁנֵי בְּנֵי אַהֲרֹן בְּקָרְבָתָם לִפְנֵי־יְהוָה וַיָּמֻֽתוּ

And the LORD spoke unto Moses, after the death of the two sons of Aaron, when they drew near before the LORD, and died;

וַיֹּאמֶר יְהוָה אֶל־מֹשֶׁה דַּבֵּר אֶל־אַהֲרֹן אָחִיךָ וְאַל־יָבֹא בְכָל־עֵת אֶל־הַקֹּדֶשׁ מִבֵּית לַפָּרֹכֶת אֶל־פְּנֵי הַכַּפֹּרֶת אֲשֶׁר עַל־הָאָרֹן וְלֹא יָמוּת כִּי בֶּֽעָנָן אֵרָאֶה עַל־הַכַּפֹּֽרֶת

and the LORD said unto Moses: ‘Speak unto Aaron thy brother, that he come not at all times into the holy place within the veil, before the ark-cover which is upon the ark; that he die not; for I appear in the cloud upon the ark-cover.

כְּתֹֽנֶת־בַּד קֹדֶשׁ יִלְבָּשׁ וּמִֽכְנְסֵי־בַד יִהְיוּ עַל־בְּשָׂרוֹ וּבְאַבְנֵט בַּד יַחְגֹּר וּבְמִצְנֶפֶת בַּד יִצְנֹף בִּגְדֵי־קֹדֶשׁ הֵם וְרָחַץ בַּמַּיִם אֶת־בְּשָׂרוֹ וּלְבֵשָֽׁם

He shall put on the holy linen tunic, and he shall have the linen breeches upon his flesh, and shall be girded with the linen girdle, and with the linen mitre shall he be attired; they are the holy garments; and he shall bathe his flesh in water, and put them on.

וּמֵאֵת עֲדַת בְּנֵי יִשְׂרָאֵל יִקַּח שְׁנֵֽי־שְׂעִירֵי עִזִּים לְחַטָּאת וְאַיִל אֶחָד לְעֹלָֽה

And he shall take of the congregation of the children of Israel two he-goats for a sin-offering, and one ram for a burnt-offering.