(Devarim 22:20) "And if the matter were true — if virginity were not found in the maiden": This tells me only of natural coitus. Whence do I derive the same for unnatural coitus? From "And if the matter were true."
(Ibid. 21) "Then they shall take out the maiden to the door of her father's house." This tells me only of her having a father and a door of her father's house. Whence do I derive (the same for) a maiden who lacks either one? From "Then they shall take out the maiden" (to be stoned) — in any event.
(דברים כב כ) וְאִם אֱמֶת הָיָה הַדָּבָר, אֵין לִי אֶלָּא כְּדַרְכָּהּ; שֶׁלֹּא כְּדַרְכָּהּ מִנַּיִן? תַּלְמוּד לוֹמַר: הָיָה. יָכוֹל שֶׁאֲנִי מְרַבֶּה בִּיאָה בְּמָקוֹם אַחֵר? תַּלְמוּד לוֹמַר: הַזֶּה.
(Devarim 22:20) "And if the matter were true — if virginity were not found in the maiden": This tells me only of natural coitus. Whence do I derive the same for unnatural coitus? From "And if the matter were true."
לֹא נִמְצְאוּ בְתוּלִים לַנַּעֲרָה – אֵין עֵדִים לְהָזֵם עֵדָיו שֶׁל זֶה.
"if virginity were not found in the maiden": i.e., if there were no witnesses to refute the witnesses of the husband.
(דברים כב כא) וְהוֹצִיאוּ אֶת הַנַּעֲרָה אֶל פֶּתַח בֵּית אָבִיהָ, אֵין לִי אֶלָּא שֶׁיֵּשׁ לָהּ אָב וְיֵשׁ לָהּ פֶּתַח בֵּית אָב, יֵשׁ לָהּ פֶּתַח בֵּית אָב וְאֵין לָהּ אָב מִנַּיִן? תַּלְמוּד לוֹמַר: וְהוֹצִיאוּ אֶת הַנַּעֲרָה מִכָּל מָקוֹם. אִם כֵּן לָמָּה נֶאֱמַר אֶל פֶּתַח בֵּית אָבִיהָ? – מִצְוָה.
(Ibid. 21) "Then they shall take out the maiden to the door of her father's house." This tells me only of her having a father and a door of her father's house. Whence do I derive (the same for) a maiden who lacks either one? From "Then they shall take out the maiden" (to be stoned) — in any event.