When the mighty Serpent above rouses himself on account of the sins of the generation, he joins himself to the Female and injects filth into her. Then the Male parts from her because she is defiled, and it is not fitting for the Male to approach her, for pity would be if he were defiled with her.
תַּנְיָא אָמַר רַבִּי שִׁמְעוֹן, אִי בְּנֵי עָלְמָא מִסְתַּכְּלָן בְּמָה דִּכְתִּיב בְּאוֹרַיְיתָא, לָא יֵיתוּן לְאַרְגָּזָא קָמֵי מָארֵיהוֹן. תָּאנָא, כַּד מִתְעָרִין דִּינִין קַשְׁיָין לְאַחֲתָא בְּעָלְמָא, וְאֶל אִשָּׁה בְּנִדַּת טוּמְאָתָהּ וְגוֹ', הָכָא כְּתִיב (תהלים כה) סוֹד יְיָ' לִירֵאָיו, (ר"צ ע"ב ובאדרא ס"א ובהאי דרא) וּבְאִדָרָא קַדִּישָׁא אִתְּמַר, הָכָא אִצְטְרִיכְנָא לְגַלָּאָה, דְּהָא לַאֲתַר דָּא אִסְתַּלָּק.
In the holy Chamber it was said: Here it is fitting to reveal what concerns this subject.
דְּתָנֵינָן, בְּשַׁעֲתָא דְּחִוְיָא תַּקִּיפָא דִּלְעֵילָּא אִתְּעַר, בְּגִין חוֹבֵי עָלְמָא, שָׁארֵי וְאִתְחַבָּר עִם נוּקְבָּא, וְאָטִיל בָּהּ זוּהֲמָא, אִתְפְּרַשׁ דְּכוּרָא מִינָּהּ, בְּגִין דְּהָא אִסְתְּאָבַת, וְאִתְקְרִיאַת מִסְאֲבָא, וְלָא אִתְחֲזֵי לִדְכוּרָא לְמִקְרַב בַּהֲדָהּ, דְּוַוי אִי אִסְתְּאַב הוּא בַּהֲדָהּ, בְּזִמְנָא דְּאִיהִי אִסְתְּאָבַת.
When the mighty Serpent above rouses himself on account of the sins of the generation, he joins himself to the Female and injects filth into her. Then the Male parts from her because she is defiled, and it is not fitting for the Male to approach her, for pity would be if he were defiled with her.