The Shulchan Aruch · Even HaEzer
אבן העזר קנ״זEven HaEzer 157
Siman 157 of 178 in Even HaEzer — 10 se'ifim
הלכות יבוםLaws of Yibbum· siman 157
Se’if 1א׳
מִי שֶׁיֵּשׁ לוֹ אָח מֵאָבִיו, אֲפִלּוּ הוּא מַמְזֵר אוֹ עוֹבֵד ע" א, וַאֲפִלּוּ הוּא קָטָן, מִשֶּׁיָּצָא רֹאשׁוֹ וְרֻבּוֹ לַאֲוִיר הָעוֹלָם קֹדֶם שֶׁיָּמוּת אָחִיו, הֲרֵי זֶה זוֹקֵק (פי', קוֹשֵׁר, מֵעִנְיָן "אֲסוּרִים בַּזִּקִים") (אִיּוֹב לו, ח) אֶת אִשְׁתּוֹ לְיִבּוּם. אֲפִלּוּ הוּא גּוֹסֵס אוֹ פְּצוּעַ מַכּוֹת שֶׁאֵינוֹ יָכוֹל לִחְיוֹת מֵהֶם, לֹא תִּנָּשֵׂא כָּל זְמַן שֶׁהוּא חַי. אֲבָל אִם הוּא אָחִיו מֵאִמּוֹ, אוֹ שֶׁנּוֹלַד אַחַר מוֹתוֹ, יְבִמְתּוֹ מֻתֶּרֶת לַשּׁוּק. וְכֵן אִם הָיָה לוֹ אָח מֵהַשִּׁפְחָה אוֹ מֵהַנָּכְרִית, אֵינוֹ זוֹקֵק אֶת אִשְׁתּוֹ, אַף עַל פִּי שֶׁהָיְתָה לֵדָתוֹ בִּקְדֻשָּׁה, הוֹאִיל וְהוֹרָתוֹ הָיְתָה שֶׁלֹּא בִּקְדֻשָּׁה:
One who has a brother of the same father, even if he is a bastard or an apostate, even if he is a child, [the law is that] from the point that his head and most of his body already was born before his brother died, behold he is tied (Rama: [Zokek] meaning "tied", like (Job 36:8)) to his [brother's] wife in levirate marriage. Even if he is on his deathbed, or diseased so much so that he will not live because of it, she cannot remarry [to someone else] so long as he lives. But if it is a brother of the same mother, or he was born after [the married childless brother] died, his "yibbum" can remarry [lit. "permitted to the marketplace"]. Similarly, if [the married childless brother] has a brother from a maid-servant, or a gentile woman, he is not tied to his [brother's] wife in levirate marriage, even though he was born in holiness, since his conception was not in holiness.
Se’if 2ב׳
אֲפִלּוּ קָרוֹב, אוֹ אִשָּׁה, אוֹ עֶבֶד, אוֹ קָטָן שֶׁהוּא מַכִּיר וְנָבוֹן, נֶאֱמָנִים לוֹמַר: זֶה פְּלוֹנִי אֲחִי פְּלוֹנִי מֵאָבִיו, וְזוֹ הִיא יְבִמְתּוֹ, וְחוֹלְצִים אוֹ מְיַבְּמִים עַל פִּיהֶם:
Even a relative, or woman, or slave, or child who can understand, they are believed to say, "So-and-so is the brother of so-and-so from his father's side, and that is his levirate wife," and they do halitza or levirate marriage by their word.
Se’if 3ג׳
גֵּרִים שֶׁנִּתְגַּיְּרוּ וַעֲבָדִים שֶׁנִּשְׁתַּחְרְרוּ, אֵין לָהֶם אַחֲוָה כְּלָל, אֲפִלּוּ אֶחָד מֵהֶם הוֹרָתוֹ שֶׁלֹּא בִּקְדֻשָּׁה וְלֵדָתוֹ בִּקְדֻשָּׁה, וְהַשֵּׁנִי הוֹרָתוֹ וְלֵדָתוֹ בִּקְדֻשָּׁה. וַאֲפִלּוּ הֵם תְּאוֹמִים וְנוֹלְדוּ בִּקְדֻשָּׁה, אֵין לָהֶם אַחֲוָה עַד שֶׁיִּהְיוּ שְׁנֵיהֶם הוֹרָתָם וְלֵדָתָם בִּקְדֻשָּׁה:
Converts or freed slaves have no brothers at all, even if one of them was conceived in an unholy manner but the birth was holy [i.e. of completely Jewish stock], and the other was conceived and born in holiness. And even if they are twins and they were [both] born in holiness, they are not brothers unless both were conceived and born in holiness.
Shulchan Aruch, Even HaEzer — Torat Emet 357 edition, via Sefaria — public domain
English: Sefaria Community Translation — CC0