Parashas Naso
לְאָבִ֣יו וּלְאִמּ֗וֹ לְאָחִיו֙ וּלְאַ֣חֹת֔וֹ לֹא־יִטַּמָּ֥א לָהֶ֖ם בְּמֹתָ֑ם כִּ֛י נֵ֥זֶר אֱלֹהָ֖יו עַל־רֹאשֽׁוֹ׃
Even if their father or mother, or their brother or sister should die, they must not become defiled for any of them, since hair set apart for their Godchair set apart for their God Lit. “the restriction of his God.” is upon their head:
Torah Temimah points to TT (cross-ref to Emor) (verified).
לאביו ולאמו — עיין לפנינו בפ׳ אמור\ldots וצרף לכאן.
English: “For his father or his mother” — see the parallel in Parashas Emor\ldots and join it here.
Custom
Chazal compare the nazir’s impurity restrictions with those of the kohen gadol and ordinary kohen.