אבן העזר ע״חEven HaEzer 78

Se’if 1א׳

פִּדְיוֹנָהּ כֵּיצַד, נִשְׁבֵּית, חַיָּב לִפְדּוֹתָהּ וְאֵינוֹ יָכוֹל לוֹמַר לָהּ: הֲרֵי גִּטֵּךְ וּכְתֻבָּתֵךְ וּפְדִי אֶת עַצְמֵךְ; וַאֲפִלּוּ אִם יֹאמַר: אֵינִי פּוֹדֵךְ וְלֹא אֶטֹּל פֵּרוֹת, אֵין שׁוֹמְעִין לוֹ, אֶלָּא חַיָּב לִפְדּוֹתָהּ:

How is she redeemed? If she is taken captive, he is obligated to redeem her, and is not permitted to say to her: Here is your divorce document and your ketubah, and redeem yourself. And even if he says: I will not redeem you and I will not take the fruits [produced by your property], we do not listen to him, but rather he is obligated to redeem her.

Se’if 2ב׳

אֵין מְחַיְּבִים אֶת הַבַּעַל לִפְדּוֹת אֶת אִשְׁתּוֹ יוֹתֵר עַל דָּמֶיהָ, אֶלָּא כְּמוֹ שֶׁהִיא שָׁוָה כִּשְׁאָר הַשְּׁבוּיוֹת. וְיֵשׁ אוֹמְרִים דְּאִשְׁתּוֹ כְּגוּפוֹ דָּמֵי, וְיָכוֹל לִפְדּוֹת בְּכָל אֲשֶׁר לוֹ (טוּר וְהָרֹא"שׁ בְּשֵׁם הָרְמַ"ה הוּבָא בַּבֵּית יוֹסֵף)

A husband is not obligated to redeem his wife for more than her value, rather [he redeems her] for what she is worth, like all captives. Rem"a: And some say that a wife is equated with his body, and he is able to redeem her with all that he has. (Tur and the Rosh in the name of the Rimah brought in the Beit Yoseif)

Se’if 3ג׳

הָיוּ דָּמֶיהָ יוֹתֵר עַל כְּדֵי כְּתֻבָּתָהּ, וְאָמַר: הֲרֵינִי מְגָרְשָׁהּ וְזוֹ כְּתֻבָּתָהּ וְתֵלֵךְ וְתִפְדֶּה אֶת עַצְמָהּ, אֵין שׁוֹמְעִין לוֹ, אֶלָּא כּוֹפִין אוֹתוֹ וּפוֹדֶה אוֹתָהּ אֲפִלּוּ הָיוּ דָּמֶיהָ עַד עֲשָׂרָה בִּכְתֻבָּתָהּ, וַאֲפִלּוּ אֵין לוֹ אֶלָּא כְּדֵי פִּדְיוֹנָהּ. בַּמֶּה דְבָרִים אֲמוּרִים, בְּפַעַם רִאשׁוֹנָה; אֲבָל אִם פְּדָאָהּ וְנִשְׁבֵּית פַּעַם שְׁנִיָּה, וְרָצָה לְגָרְשָׁהּ, מְגָרְשָׁהּ וְנוֹתֵן לָהּ כְּתֻבָּתָהּ וְהִיא תִּפְדֶּה אֶת עַצְמָהּ; אֲבָל בְּלָאו הָכִי אֵינוֹ חַיָּב לִפְדּוֹתָהּ בְּפַעַם שְׁנִיָּה (בֵּית יוֹסֵף):

If the ransom was higher than her dower, and so he says: "I hereby divorce her, and here is her dower. She may go redeem herself," we do not heed him. Rather we compel him to redeem her, even if her ransom was up to ten times the value of her dower, and even if he only has enough to redeem her. When does this apply? The first time. But if he redeemed her and she was captured a second time, he may divorce her and give her dower to her, and she redeems herself. Rem"a: And regardless, he is not obligated to redeem her a second time (Beit Yosef).