משנה: הַמְגָרֵשׁ אֶת הָאִשָּׁה וְהֶחֱזִירָהּ מוּתֶּרֶת לְיָבָם וְרִבִּי לִיעֶזֶר אוֹסֵר. וְכֵן הַמְגָרֵשׁ אֶת הַיְּתוֹמָה וְהֶחֱזִירָהּ מוּתֶּרֶת לְיָבָם וְרִבִּי לִיעֶזֶר אוֹסֶר. קְטַנָּה שֶּׁהִשִּׂיאָהּ אָבִיהָ וְנִתְגָּרְשָׁה כִּיתוֹמָה בְּחַיֵי הָאָב הֶחֱזִירָהּ אֲסוּרָה לְיָבָם. וּמוֹדִין חֲכָמִים לְרִבִּי לִעֶזֶר בִּזְמַן שֶׁגֵּירְשָׁהּ קְטַנָּה וְהֶחֱזִירָהּ קְטַנָּה מִפְּנֵי שֶׁהָיוּ גֵירוּשֶׁיהָ גֵירוּשִׁין גְּמוּרִין וְלֹא הָיְתָה חֲזָרָתָהּ גְּמוּרָה. אֲבָל אִם גֵּירְשָׁהּ קְטַנָּה וְהֶחֱזִירָהּ גְּדוֹלָה אוֹ שֶׁגִּידְּלָהּ תַּחְתָּיו מוּתֶּרֶת לְיָבָם.
MISHNAH: If somebody divorced his wife and later took her back, she is permitted to the levir but Rebbi Eliezer forbids her. Similarly, if somebody divorced an orphan girl and took her back, she is permitted to the levir but Rebbi Eliezer forbids her. If an underage girl who was married off by her father was divorced, she is like an orphan during her father’s lifetime. If she was taken back, she is prohibited to the levir. The Sages agree with Rebbi Eliezer in case he divorced her as a minor and took her back as a minor, since her divorce is a total divorce but her return was not complete. But if he divorced her as a minor and took her back as an adult or she became an adult while married to him, she is permitted to the levir.