Leviticus 15:16

וּבַיּוֹם הַשְּׁמִינִי יִֽקַּֽח־לוֹ שְׁתֵּי תֹרִים אוֹ שְׁנֵי בְּנֵי יוֹנָה וּבָא לִפְנֵי יְהוָה אֶל־פֶּתַח אֹהֶל מוֹעֵד וּנְתָנָם אֶל־הַכֹּהֵֽן

And on the eighth day he shall take to him two turtle-doves, or two young pigeons, and come before the LORD unto the door of the tent of meeting, and give them unto the priest.

וְעָשָׂה אֹתָם הַכֹּהֵן אֶחָד חַטָּאת וְהָאֶחָד עֹלָה וְכִפֶּר עָלָיו הַכֹּהֵן לִפְנֵי יְהוָה מִזּוֹבֽוֹ

And the priest shall offer them, the one for a sin-offering, and the other for a burnt-offering; and the priest shall make atonement for him before the LORD for his issue.

וְכָל־בֶּגֶד וְכָל־עוֹר אֲשֶׁר־יִהְיֶה עָלָיו שִׁכְבַת־זָרַע וְכֻבַּס בַּמַּיִם וְטָמֵא עַד־הָעָֽרֶב

And every garment, and every skin, whereon is the flow of seed, shall be washed with water, and be unclean until the even.

וְאִשָּׁה אֲשֶׁר יִשְׁכַּב אִישׁ אֹתָהּ שִׁכְבַת־זָרַע וְרָחֲצוּ בַמַּיִם וְטָמְאוּ עַד־הָעָֽרֶב

The woman also with whom a man shall lie carnally, they shall both bathe themselves in water, and be unclean until the even.