אבן העזר קס״זEven HaEzer 167

Se’if 1א׳

קָטָן פָּחוֹת מִבֶּן תִּשְׁעָה, אֵין בִּיאָתוֹ כְּלוּם; וּמִבֶּן תֵּשַׁע שָׁנִים וְיוֹם אֶחָד וְאֵילָךְ, בִּיאָתוֹ קוֹנָה בִּיבִמְתּוֹ כַּמַּאֲמָר בַּגָּדוֹל. וּבְאִשָּׁה דְּעָלְמָא אֵינָהּ קוֹנָה כְּלָל; לְפִיכָךְ, נָשָׂא אִשָּׁה וּמֵת, פְּטוּרָה מֵהַחֲלִיצָה וּמֵהַיִּבּוּם:

A youth younger than 9, his sexual intercourse is not [considered] anything [from a halachic standpoint]. From 9 years and one day and on, his sexual intercourse acquires through levirate marriage, as speech would for an adult [over 13]. And a woman normally cannot acquire anything. Therefore, if he marries a woman and dies, she is exempt from halitza and the levirate marriage.

Se’if 2ב׳

בֶּן ט' שָׁנִים וְיוֹם אֶחָד שֶׁבָּא עַל יְבִמְתּוֹ, אֵינוֹ יָכוֹל לְפָטְרָהּ בְּגֵט, עַד שֶׁיַּגְדִּיל וְיָבֹא עָלֶיהָ אַחַר כָּךְ. וְאִם לֹא בָּא עָלֶיהָ אַחַר כָּךְ, וּבָא לְהוֹצִיאָהּ, צְרִיכָה גֵּט וַחֲלִיצָה. וְאִם בָּא עָלֶיהָ כְּשֶׁהוּא קָטָן, וּמֵת קֹדֶם שֶׁהִגְדִּיל, אוֹ מֵת אַחַר שֶׁהִגְדִּיל אֲבָל לֹא בָּא עָלֶיהָ מִשֶּׁהִגְדִּיל, חוֹלֶצֶת וְלֹא מִתְיַבֶּמֶת. וְאִם מִשֶּׁהִגְדִּיל נָשָׂא אַחֶרֶת, וְלֹא בָּא עַל הַיְבָמָה מִשֶּׁהִגְדִּיל, שְׁתֵּיהֶן חוֹלְצוֹת וְלֹא מִתְיַבְּמוֹת:

A boy of 9 years and a day who has sexual intercourse for levirate marriage, cannot let her go through a divorce document, until he gets older [to 13] and then has sexual intercourse with her after that point. If he does not have sexual intercourse with her after that point, and he comes to let her go, she needs a divorce document and halitza. If he has sexual intercourse with her when he is a youth [younger than 3], and he dies before he gets older [to 13], or he dies after he gets older [to 13] but he did not have sexual intercourse with her after that point, she does halitza and not levirate marriage. And once he gets older [to 13], if he marries another [and he dies], and he has not [yet] has sexual intercourse for his levirate marriage after he got older [to 13], both [women] must do halitza, but not levirate marriage.

Se’if 3ג׳

קָטָן אֵינוֹ חוֹלֵץ, עַד שֶׁיִּהְיֶה בֶּן י"ג שָׁנָה וְיוֹם אֶחָד וְיִבְדְּקוּהוּ אָז וְיִמְצְאוּהוּ שֶׁהֵבִיא שְׁתֵּי שְׂעָרוֹת. אֲבָל אִם הָיוּ לוֹ שְׁתֵּי שְׂעָרוֹת קֹדֶם שֶׁהִגְדִּיל, אֵינוֹ נֶחְשָׁב גָּדוֹל עַל יָדָם, אֶלָּא אִם כֵּן יָבִיא שְׁתֵּי שְׂעָרוֹת אֲחֵרוֹת אַחַר שֶׁהִגְדִּיל. וּמִכָּל מָקוֹם, אִם מוֹצְאִים לוֹ שְׁתֵּי שְׂעָרוֹת אַחַר שֶׁהִגְדִּיל, לֹא חַיְשִׁינָן שֶׁמָּא אֵלּוּ הָיוּ בּוֹ מִקֹּדֶם:

A youth does not do halitza until he is 13 years of age and one day, and they check him then that he has the two hairs [that determine Biblical maturity]. But if he he had two hairs before he got older [to 13], he is not considered an adult through [the hairs], but rather only if two other ahirs came after he got older. Nevertheless, if two hairs are found after he got older, we do not suspect perhaps they were there from before.