וְהִקְרִיב֙ מִזֶּ֣בַח הַשְּׁלָמִ֔ים אִשֶּׁ֖ה לַיהוָ֑ה אֶת־הַחֵ֙לֶב֙ הַֽמְכַסֶּ֣ה אֶת־הַקֶּ֔רֶב וְאֵת֙ כָּל־הַחֵ֔לֶב אֲשֶׁ֖ר עַל־הַקֶּֽרֶב׃
E oferecerá do sacrifício das ofertas de paz uma oferta queimada para Hashem: a gordura que cobre as entranhas e toda a gordura que está sobre as entranhas,
Mishnah Nazir
Shaving in a case of purity: How was it done?He would bring three animals, a sin-offering, a burnt-offering, and a well-being offering, slaughter the peace-offering and shave thereafter, the words of Rabbi Judah. Rabbi Elazar says: he shaves after the sin-offering, for in all cases [the sacrifice of] the sin-offering takes precedence. But if he shaved after [the slaughter] of any one of the three he has fulfilled his obligation.