Kesuvos3: 5
כֵּיצַד שׁוֹתֶה בַעֲצִיצוֹ? אֲפִלּוּ הִיא חִגֶּרֶת, אֲפִלּוּ הִיא סוּמָא, וַאֲפִלּוּ הִיא מֻכַּת שְׁחִין. נִמְצָא בָהּ דְּבַר עֶרְוָה, אוֹ שֶׁאֵינָהּ רְאוּיָה לָבֹא בְיִשְׂרָאֵל — אֵינוֹ רַשַּׁאי לְקַיְּמָהּ, שֶׁנֶּאֱמַר: ,,וְלוֹ תִהְיֶה לְאִשָּׁה” — אִשָּׁה הָרְאוּיָה לוֹ.
How does he drink out of his pot? [By marrying her] even if she is lame, blind, or a leper. [If] it was found that she had an affair of unchastity [however], or if she was unfit to marry a Jew, he is not permitted to keep her, for it is said (Deuteronomy 22:29): and she shall become his wife, [implying] a wife who is fit for him.