כָּל־אִ֞ישׁ אֲשֶׁר־בּ֣וֹ מ֗וּם מִזֶּ֙רַע֙ אַהֲרֹ֣ן הַכֹּהֵ֔ן לֹ֣א יִגַּ֔שׁ לְהַקְרִ֖יב אֶת־אִשֵּׁ֣י יְהוָ֑ה מ֣וּם בּ֔וֹ אֵ֚ת לֶ֣חֶם אֱלֹהָ֔יו לֹ֥א יִגַּ֖שׁ לְהַקְרִֽיב׃
Todo homem que tiver nele algum defeito, da descendência de Aharon, o kohen, não se aproximará para oferecer as ofertas de Hashem; há um defeito nele, ele não se aproximará para oferecer o pão do seu Deus.
Mishneh Torah, Negative Mitzvot
That a priest, with a temporary blemish, shall not serve there, as it is said, “No man, in whom there is a blemish, shall draw nigh (to offer the fire-offerings of the Lord)” (Lev. 21:21).
Sefer HaChinukh
That a priest with a transient blemish not serve: That a priest with a transient blemish not serve, as it is stated (Leviticus 21:21), “Any man that has a blemish from the seed of Aharon the priest shall not come forth” — [the] word, “any,” is an inclusion; and it includes a transient blemish. As at the beginning, it warns about a permanent blemish, such that I would reason that it is permitted to serve with a transient blemish which is less weighty than it. Therefore it warned about the transient, and that is the garav and the yalefet.