אות נדה ו:יא
תִּינוֹקֶת שֶׁהֵבִיאָה שְׁתֵּי שְׂעָרוֹת, אוֹ חוֹלֶצֶת אוֹ מִתְיַבֶּמֶת, וְחַיֶּבֶת בְּכָל מִצְוֹת הָאֲמוּרוֹת בַּתּוֹרָה. וְכֵן תִּינוֹק שֶׁהֵבִיא שְׁתֵּי שְׂעָרוֹת, חַיָּב בְּכָל מִצְוֹת הָאֲמוּרוֹת בַּתּוֹרָה. וְרָאוּי לִהְיוֹת בֵּן סוֹרֵר וּמוֹרֶה, מִשֶּׁיָּבִיא שְׁתֵּי שְׂעָרוֹת עַד שֶׁיַּקִּיף זָקָן, הַתַּחְתּוֹן וְלֹא הָעֶלְיוֹן, אֶלָּא שֶׁדִּבְּרוּ חֲכָמִים בְּלָשׁוֹן נְקִיָּה. תִּינוֹקֶת שֶׁהֵבִיאָה שְׁתֵּי שְׂעָרוֹת, אֵינָהּ יְכוֹלָה לְמָאֵן. רַבִּי יְהוּדָה אוֹמֵר, עַד שֶׁיִּרְבֶּה הַשָּׁחֹר:
A young girl who reached the age of puberty and grew two pubic hairs is an adult. If her childless husband dies, she either performs ḥalitza and is thereby permitted to marry anyone, or enters into levirate marriage with her husband’s brother. And furthermore, such a girl is obligated to fulfill all the mitzvot stated in the Torah in which women are obligated. And likewise, a young boy who reached the age of puberty and grew two pubic hairs is an adult and is obligated to fulfill all the mitzvot stated in the Torah. And he is fit to be declared a stubborn and rebellious son if he performs the actions that warrant that designation, from when he grows two pubic hairs until his beard will form a circle. During that period, although he is an adult and punishable for his actions, he is incapable of fathering a child. Consequently, as he is a son and not a father, he can be designated a stubborn and rebellious son. The mishna explains that the reference is to the lower, pubic, hair, and not to the upper, facial, hair. But the term beard is used, despite its being subject to misinterpretation, due to the fact that the Sages spoke euphemistically. A young girl who reached the age of puberty and grew two pubic hairs can no longer perform refusal to end a marriage with a husband to whom she was married as a minor by her mother and brothers after her father’s death. Rabbi Yehuda says: She retains the right to perform refusal until the pubic hair will grow to the extent that the black hair will be preponderant in the pubic area.
