משנה: כְּשֵׁם שֶׁהַמַּיִם בּוֹדְקִין אוֹתָהּ כָּךְ הַמַּיִם בּוֹדְקִין אוֹתוֹ שֶׁנֶּאֱמַר וּבָאוּ וּבָאוּ. כְּשֵׁם שֶׁהִיא אֲסוּרָה לַבַּעַל כָּךְ הִיא אֲסוּרָה לַבּוֹעֵל שֶׁנֶּאֱמַר נִטְמְאָה נִטְמְאָה דִּבְרֵי רִבִּי עֲקִיבָה. אָמַר רִבִּי יְהוֹשֻׁעַ כָּךְ הָיָה דוֹרֵשׁ זְכַרְיָה בֶּן הַקַּצָּב. רִבִּי אוֹמֵר שְׁנֵי פְעָמִים הָאֲמוּרִים בַּפָּרָשָׁה אִם נִטְמָאָה נִטְמָאָה אֶחָד לַבַּעַל וְאֶחָד לַבּוֹעֵל.
MISHNAH: Just as the water checks her out so it checks him out, as it is said, “it will come, it will come”. Just as she is forbidden to the husband so she is forbidden to her paramour as it is said, “she was impure, she was impure,” the words of Rebbi Aqiba. Rebbi Joshua said, that was the inference of Zachariah the butcher’s son. Rebbi said, the two times it said, “she became impure, she became impure,” once for the husband and once for the paramour.