Mishnah Yevamot
1א׳
1 א

חֲמֵשׁ עֶשְׂרֵה נָשִׁים פּוֹטְרוֹת צָרוֹתֵיהֶן וְצָרוֹת צָרוֹתֵיהֶן מִן הַחֲלִיצָה וּמִן הַיִּבּוּם עַד סוֹף הָעוֹלָם. וְאֵלּוּ הֵן, בִּתּוֹ, וּבַת בִּתּוֹ, וּבַת בְּנוֹ, בַּת אִשְׁתּוֹ, וּבַת בְּנָהּ, וּבַת בִּתָּהּ, חֲמוֹתוֹ וְאֵם חֲמוֹתוֹ, וְאֵם חָמִיו, אֲחוֹתוֹ מֵאִמּוֹ, וַאֲחוֹת אִמּוֹ, וַאֲחוֹת אִשְׁתּוֹ, וְאֵשֶׁת אָחִיו מֵאִמּוֹ, וְאֵשֶׁת אָחִיו שֶׁלֹּא הָיָה בְעוֹלָמוֹ, וְכַלָּתוֹ, הֲרֵי אֵלּוּ פּוֹטְרוֹת צָרוֹתֵיהֶן וְצָרוֹת צָרוֹתֵיהֶן מִן הַחֲלִיצָה וּמִן הַיִּבּוּם עַד סוֹף הָעוֹלָם. וְכֻלָּן אִם מֵתוּ, אוֹ מֵאֲנוּ, אוֹ נִתְגָּרְשׁוּ, אוֹ שֶׁנִּמְצְאוּ אַיְלוֹנִיּוֹת, צָרוֹתֵיהֶן מֻתָּרוֹת. וְאִי אַתָּה יָכוֹל לוֹמַר בַּחֲמוֹתוֹ וּבְאֵם חֲמוֹתוֹ וּבְאֵם חָמִיו שֶׁנִּמְצְאוּ אַיְלוֹנִיּוֹת אוֹ שֶּׁמֵּאֵנוּ:

Fifteen [categories of] women exempt their rival wives and the rival wives of their rival wives and so on ad infinitum from halitzah and from yibbum. And these are they: his daughter, and the daughter of his daughter, and the daughter of his son, and the daughter of his wife, and the daughter of her son and the daughter of her daughter; (7) His mother-in-law and his mother-in-law’s mother, and his father-in-law’s mother; (10) His maternal sister and his mother’s sister and his wife’s sister (13) And his maternal brother’s wife; and the wife of his brother who died before he was born, (15) And his daughter-in-law. All these exempt their rival wives and the rival wives of their rival wives, and so on, ad infinitum, from halitzah and from yibbum. If any of them died, or made a declaration of refusal, or were divorced, or were found incapable of procreation, their rivals are permitted. And you cannot say of a man’s mother-in-law, or the mother of his mother-in-law and of the mother of his father-in-law that they were found incapable of procreation or that they made a declaration of refusal.

2 ב

כֵּיצַד פּוֹטְרוֹת צָרוֹתֵיהֶן. הָיְתָה בִּתּוֹ אוֹ אַחַת מִכָּל הָעֲרָיוֹת הָאֵלּוּ נְשׂוּאָה לְאָחִיו, וְלוֹ אִשָּׁה אַחֶרֶת, וָמֵת, כְּשֵׁם שֶׁבִּתּוֹ פְּטוּרָה, כָּךְ צָרָתָהּ פְּטוּרָה. הָלְכָה צָרַת בִּתּוֹ וְנִשֵּׂאת לְאָחִיו הַשֵּׁנִי, וְלוֹ אִשָּׁה אַחֶרֶת, וָמֵת, כְּשֵׁם שֶׁצָּרַת בִּתּוֹ פְּטוּרָה, כָּךְ צָרַת צָרָתָהּ פְּטוּרָה, אֲפִלּוּ הֵן מֵאָה. כֵּיצַד אִם מֵתוּ צָרוֹתֵיהֶן מֻתָּרוֹת, הָיְתָה בִתּוֹ אוֹ אַחַת מִכָּל הָעֲרָיוֹת הָאֵלּוּ נְשׂוּאָה לְאָחִיו, וְלוֹ אִשָּׁה אַחֶרֶת, מֵתָה בִתּוֹ אוֹ נִתְגָּרְשָׁה, וְאַחַר כָּךְ מֵת אָחִיו, צָרָתָהּ מֻתֶּרֶת. וְכָל הַיְכוֹלָה לְמָאֵן וְלֹא מֵאֲנָה, צָרָתָהּ חוֹלֶצֶת וְלֹא מִתְיַבֶּמֶת:

How do they exempt their rival wives? If his daughter or any other of these forbidden relatives was married to his brother who also had another wife, and he died, then just as his daughter is exempt so is her rival exempt. If his daughter’s rival went and married a second brother of his, who also had another wife, and he died, then just as the rival of his daughter is exempt so is his daughter’s rival’s rival exempt, even if there were a hundred [brothers]. How is it that if they had died, their rivals are permitted? If a man’s daughter or any other of these forbidden relatives was married to his brother who also had another wife, and his daughter died or was divorced, and afterwards his brother died, her rival is permitted. The rival of any one who can make a declaration of refusal but did not make a declaration of refusal, must perform halitzah and may not have yibbum.

3 ג

שֵׁשׁ עֲרָיוֹת חֲמוּרוֹת מֵאֵלּוּ, מִפְּנֵי שֶׁנְּשׂוּאוֹת לַאֲחֵרִים, צָרוֹתֵיהֶן מֻתָּרוֹת. אִמּוֹ, וְאֵשֶׁת אָבִיו, וַאֲחוֹת אָבִיו, אֲחוֹתוֹ מֵאָבִיו, וְאֵשֶׁת אֲחִי אָבִיו, וְאֵשֶׁת אָחִיו מֵאָבִיו:

There are six relatives that are more restricted than these, in that they may be married only to strangers, marriage with their rivals is permitted: his mother and his father’s wife, his father’s sister, his paternal sister, his father’s brother’s wife and his paternal brother’s wife.

4 ד

בֵּית שַׁמַּאי מַתִּירִין הַצָּרוֹת לָאַחִים, וּבֵית הִלֵּל אוֹסְרִים. חָלְצוּ, בֵּית שַׁמַּאי פּוֹסְלִין מִן הַכְּהֻנָּה, וּבֵית הִלֵּל מַכְשִׁירִים. נִתְיַבְּמוּ, בֵּית שַׁמַּאי מַכְשִׁירִים, וּבֵית הִלֵּל פּוֹסְלִין. אַף עַל פִּי שֶׁאֵלּוּ אוֹסְרִין וְאֵלּוּ מַתִּירִין, אֵלּוּ פּוֹסְלִין וְאֵלּוּ מַכְשִׁירִין, לֹא נִמְנְעוּ בֵּית שַׁמַּאי מִלִּשָּׂא נָשִׁים מִבֵּית הִלֵּל, וְלֹא בֵית הִלֵּל מִבֵּית שַׁמַּאי. כָּל הַטָּהֳרוֹת וְהַטֻּמְאוֹת שֶׁהָיוּ אֵלּוּ מְטַהֲרִין וְאֵלּוּ מְטַמְּאִין, לֹא נִמְנְעוּ עוֹשִׂין טָהֳרוֹת אֵלּוּ עַל גַּבֵּי אֵלּוּ:

Beth Shammai permits the rival wives to the surviving brothers, and Beth Hillel prohibits them. If they perform the halitzah, Beth Shammai disqualifies them from marrying a priest, and Beth Hillel makes the eligible. If they performed yibbum, Beth Shammai makes them eligible [to marry a priest], and Beth Hillel disqualifies them. Though these forbid and these permit, and these disqualify and these make eligible, Beth Shammai did not refrain from marrying women from [the families of] Beth Hillel, nor did Beth Hillel [refrain from marrying women] from [the families of] Beth Shammai. [With regard to] purity and impurity, which these declare pure and the others declare impure, neither of them refrained from using the utensils of the others for the preparation of food that was ritually clean.