Mishnayos Nazir Perek 4 Mishnah 7

A man can shave, i.e., bring the offerings at the close of his term of naziriteship, by using offerings originally designated for his father’s naziriteship, but a woman cannot shave by means of the offerings for her father’s naziriteship. How so; how is this halakha applied? It applies to one whose father was a nazirite and separated unallocated money for his naziriteship, i.e., he did not state which coins were for which of his offerings, and he died before buying the animals, and the son said after his father’s death: I am hereby a nazirite on the condition that I will shave by means of the money that my father set aside. Rabbi Yosei said: In that case these coins are allocated for communal gift offerings, and the son may not use them, as this is not the case of the halakha that a son can shave by using his father’s naziriteship. Rather, who is the son who can shave by using his father’s naziriteship? This is referring to a son and his father who were both nazirites during his father’s lifetime, and his father separated unallocated money for his naziriteship and died; this is the one who may shave by using his father’s naziriteship.

הָאִישׁ מְגַלֵּחַ עַל נְזִירוּת אָבִיו וְאֵין הָאִשָּׁה מְגַלַּחַת עַל נְזִירוּת אָבִיהָ. כֵּיצַד. מִי שֶׁהָיָה אָבִיו נָזִיר וְהִפְרִישׁ מָעוֹת סְתוּמִים עַל נְזִירוּתוֹ וּמֵת, וְאָמַר הֲרֵינִי נָזִיר עַל מְנָת שֶׁאֲגַלַּח עַל מְעוֹת אַבָּא, אָמַר רַבִּי יוֹסֵי, הֲרֵי אֵלּוּ יִפְּלוּ לִנְדָבָה, אֵין זֶה מְגַלֵּחַ עַל נְזִירוּת אָבִיו. אֵיזֶהוּ שֶׁמְּגַלֵּחַ עַל נְזִירוּת אָבִיו, מִי שֶׁהָיָה הוּא וְאָבִיו נְזִירִים וְהִפְרִישׁ אָבִיו מָעוֹת סְתוּמִים לִנְזִירוּתוֹ וּמֵת, זֶהוּ שֶׁמְּגַלֵּחַ עַל נְזִירוּת אָבִיו: