The Shulchan Aruch · Even HaEzer
אבן העזר קס״אEven HaEzer 161
Siman 161 of 178 in Even HaEzer — 9 se'ifim
הלכות יבוםLaws of Yibbum· siman 161
Se’if 1א׳
מִי שֶׁהָיוּ לוֹ נָשִׁים רַבּוֹת, וּמֵת, וְלוֹ אָח, בִּיאָתָהּ אוֹ חֲלִיצָתָהּ שֶׁל אַחַת מֵהֶם פּוֹטֶרֶת כֻּלָּן, וְאֵין הַיָּבָם יָכוֹל לְיַבֵּם אֶלָּא אַחַת מֵהֶן:
Someone who has many wives, and dies, and has a brother: the intercourse or release of one of them removes the obligations of the others, and the brother can only marry one of them.
Se’if 2ב׳
הָיוּ בָּהֶן פְּסוּלוֹת לִכְהֻנָּה, אִם בָּא לַחֲלֹץ אֵינוֹ חוֹלֵץ אֶלָּא לַפְּסוּלָה וְלֹא לַכְּשֵׁרָה:
If among them are those who are unfitting for a Cohen: if the brother acts to release them, he releases one who is unfitting and not one who is fitting.
Se’if 3ג׳
הָיוּ לוֹ אַחִים רַבִּים, וְנָפְלוּ נְשׁוֹתָיו לִפְנֵיהֶם, אֶחָד מְיַבֵּם אוֹ חוֹלֵץ לְאַחַת מֵהַיְבָמוֹת, וְהֻתְּרוּ שְׁאָר הַצָּרוֹת:
[If he had many wives and died and] he had many brothers and his wives fall to them: One [brother] marries or releases one of the wives and [this act] allows the rest of them [to marry someone else].
Shulchan Aruch, Even HaEzer — Torat Emet 357 edition, via Sefaria — public domain
English: Sefaria Community Translation — CC0