משנה: בְּאֵי זֶה צַד פּוֹטְרוֹת צָרוֹתֵיהֶן. הָיְתָה בִתּוֹ אוֹ אַחַת מִכָּל הָעֲרָיוֹת הָאֵילּוּ נְשׂוּאָה לְאָחִיו וְלוֹ אִשָּׁה אֲחֶרֶת וָמֵת כְּשֵׁם שֶׁבִּתּוֹ פְּטוּרָה כָּךְ צָרָתָהּ פְּטוּרָה. הָלְכָה צָרַת בִּתּוֹ וְנִשֵּׂאת לְאָחִיו הַשֵּׁנִי וְלוֹ אִשָּׁה אֶחֶרֶת וָמֵת כְּשֵׁם שֶׁצָּרַת בִּתּוֹ פְּטוּרָה כָּךְ צָרַת צָרָתָהּ פְּטוּרָה אֲפִילוּ הֵן מֵאָה.
MISHNAH: How do they free their co-wives? If a man’s daughter or one of the incest-prohibited women was married to his brother who has another wife and dies, just as his daughter is free so her co-wife is free. If his daughter’s co-wife went and was married to a second brother who then died, just as his daughter’s co-wife is freed, so the co-wife’s co-wife is freed; even if this is repeated a hundred times.