Numbers 6:8

כָּל־יְמֵי הַזִּירוֹ לַיהוָה עַל־נֶפֶשׁ מֵת לֹא יָבֹֽא

All the days that he consecrateth himself unto the LORD he shall not come near to a dead body.

לְאָבִיו וּלְאִמּוֹ לְאָחִיו וּלְאַחֹתוֹ לֹא־יִטַּמָּא לָהֶם בְּמֹתָם כִּי נֵזֶר אֱלֹהָיו עַל־רֹאשֽׁוֹ

He shall not make himself unclean for his father, or for his mother, for his brother, or for his sister, when they die; because his consecration unto God is upon his head.

וְכִֽי־יָמוּת מֵת עָלָיו בְּפֶתַע פִּתְאֹם וְטִמֵּא רֹאשׁ נִזְרוֹ וְגִלַּח רֹאשׁוֹ בְּיוֹם טָהֳרָתוֹ בַּיּוֹם הַשְּׁבִיעִי יְגַלְּחֶֽנּוּ

And if any man die very suddenly beside him, and he defile his consecrated head, then he shall shave his head in the day of his cleansing, on the seventh day shall he shave it.

וּבַיּוֹם הַשְּׁמִינִי יָבִא שְׁתֵּי תֹרִים אוֹ שְׁנֵי בְּנֵי יוֹנָה אֶל־הַכֹּהֵן אֶל־פֶּתַח אֹהֶל מוֹעֵֽד

And on the eighth day he shall bring two turtledoves, or two young pigeons, to the priest, to the door of the tent of meeting.