אבן העזר ע׳Even HaEzer 70

Se’if 1א׳

כֵּיצַד חַיָּב בִּמְזוֹנוֹתֶיהָ, אוֹכֶלֶת וְשׁוֹתָה מִמַּה שֶּׁהוּא אוֹכֵל וְשׁוֹתֶה. וְאִם כָּל בְּנֵי מִשְׁפַּחְתָּה רְגִילִים בִּגְדוֹלוֹת, צָרִיךְ לְהַנְהִיגָהּ כֵּן; אִם אֵין כֻּלָּם רְגִילִים בִּגְדוֹלוֹת, אֵינוֹ חַיָּב לְהַנְהִיגָהּ בְּכָךְ כְּשֶׁאוֹכֶלֶת עִמּוֹ. אֲבָל כְּשֶׁאֵינָהּ אוֹכֶלֶת עִמּוֹ צָרִיךְ לְהַנְהִיגָהּ כְּדֶרֶךְ שֶׁהָיְתָה נוֹהֶגֶת בְּבֵית אָבִיהָ (טוּר):

How is he obligated in her sustenance? She eats and drinks from what he eats and drinks. If all the members of her family are accustomed to large [portions?], then he has to provide her with such. If they are not all accustomed to large [portions?], then he is not obligated to provide her with such when she eats with him. Rema: but when she is not with him he has to provide for her in the way she is accustomed to in her father's house.

Se’if 2ב׳

בַּעַל שֶׁרָצָה לִתֵּן לְאִשְׁתּוֹ מְזוֹנוֹתֶיהָ הָרְאוּיִים לָהּ וְתִהְיֶה אוֹכֶלֶת וְשׁוֹתָה לְעַצְמָהּ, הָרְשׁוּת בְּיָדוֹ, וּבִלְבַד שֶׁיֹּאכַל עִמָּהּ בְּלֵיל שַׁבָּת. וְיֵשׁ חוֹלְקִין וּסְבִירָא לְהוּ דְּלֹא יוּכַל לוֹמַר שֶׁהִיא תֹּאכַל לְבַדָּהּ אֶלָּא אִם כֵּן קִבְּלָה עָלֶיהָ מֵרְצוֹנָהּ (טוּר בְּשֵׁם הַיְרוּשַׁלְמִי וּבְשֵׁם הָרֹא"שׁ, וּבֵית יוֹסֵף בְּשֵׁם רֹב הַפּוֹסְקִים), וְכֵן נִרְאֶה לִי:

A husband who wants to give his wife food that is fitting to her and she'll eat and drink on her own, he is allowed, but only if she eats with him on the Sabbath eve. Rema: There are those that disagree and reason that he can not tell her to eat on her own unless she does so of her own free will. (Tur in the name of the Jerusalem Talmud, and in the name of the Rosh. And Bet Yosef in the name of the majority of poskim.) This seems fitting to me.

Se’if 3ג׳

כַּמָּה מְזוֹנוֹת פּוֹסְקִים לָאִשָּׁה, לֶחֶם שְׁתֵּי סְעֻדּוֹת בְּכָל יוֹם, וּפַרְפְּרוֹת לֶאֱכֹל בָּהּ הַפַּת, וְשֶׁמֶן לַאֲכִילָה וּלְהַדְלָקַת הַנֵּר, וּמְעַט יַיִן לִשְׁתּוֹת, אִם הָיָה מִנְהַג הַמָּקוֹם שֶׁיִּשְׁתּוּ הַנָּשִׁים יַיִן, וְאִם הָיְתָה מֵינִקָה נוֹתְנִים לָהּ יַיִן (טוּר); וּבְשַׁבָּת שְׁלשָׁה סְעֻדּוֹת וּבָשָׂר אוֹ דָּגִים; וְנוֹתֵן לָהּ בְּכָל שַׁבָּת מָעָה כֶּסֶף לִצְרָכֶיהָ; וְנוֹתְנִין לָהּ עֵץ לְבַשֵּׁל מַאֲכָלָהּ (הָרַ"ן פֶּרֶק אַף עַל פִּי). בַּמֶּה דְבָרִים אֲמוּרִים, בְּעָנִי שֶׁבְּיִשְׂרָאֵל; אֲבָל אִם הָיָה עָשִׁיר, הַכֹּל לְפִי עָשְׁרוֹ. צִמְצְמָה וְהוֹתִירוּ מֵאֵלּוּ הַמְּזוֹנוֹת, הוּא שֶׁל בַּעַל (טוּר). וְאִם הָיָה עָנִי בְּיוֹתֵר וְאֵינוֹ יָכוֹל לִתֵּן לָהּ אֲפִלּוּ לֶחֶם שֶׁהִיא צְרִיכָה, כּוֹפִין אוֹתוֹ לְהוֹצִיא. הַגָּה: וּתְהֵא כְּתֻבָּתָהּ עָלָיו חוֹב עַד שֶׁיִּמְצָא וְיִתֵּן (טוּר בְּשֵׁם הָרַמְבַּ"ם). וְיֵשׁ אוֹמְרִים שֶׁאֵין כּוֹפִין אוֹתוֹ לְהוֹצִיא, מֵאַחַר שֶׁאֵין לוֹ (ר"י בְּשֵׁם רַבֵּנוּ תָּם). מִי שֶׁאֵין לוֹ מְזוֹנוֹת אֶלָּא חַד יוֹמָא, חַיָּב לָזוּן מִנֵּהּ אֶת אִשְׁתּוֹ אוֹ לְמֵיכַל בַּהֲדָהּ (טוּר בְּשֵׁם הָרַמָ"ה). וְיֵשׁ אוֹמְרִים עוֹד, דְּחַיָּב לְהַשְׂכִּיר עַצְמוֹ כְּפוֹעֵל וְלָזוּן אִשְׁתּוֹ (טוּר בְּשֵׁם ר' אֵלִיָּה וּמוהר"ם בְּשֵׁם רבי' שֶׁבְּצָרְפַת). הָיָה לוֹ קַרְקָעוֹת, הָרְשׁוּת בְּיַד הָאִשָּׁה לִקַּח מְזוֹנוֹתֶיהָ מִפֵּרוֹת הַקַּרְקָעוֹת אוֹ מִגּוּף הַקַּרְקָעוֹת, אוֹ צָרִיךְ לְמָכְרָן (רַשְׁבָּ"א סִימָן תת"ץ):

How much sustenance is allocated to the wife? Bread for two meals per day and appetizers to eat with the bread, oil for eating and lighting candles, and a little wine to drink, if it was the custom in that place for women to drink wine. Rama: If she was breastfeeding, we give her wine (Tur). Mechaber: For the Sabbath [she receives] 3 meals and meat or fish. Additionally he gives her 1 ma'ah (1/6 of a Tyrian dinar) every week for her needs. Rama: And we give her wood for cooking her food (Ran chapter Af Al Pi in Ketuboth). Mechaber: With what case are we dealing? With a poor man in Israel. But if he was rich, [her allocation is] according to his wealth. Rama: If she scrimped and had left over from the sustenance, it belongs to the husband (Tur). Mechaber: If he was extremely poor and could not afford to give her even the bread she needs, we force him to divorce her. Rama: The ketuba monies remain as his debt until he finds [the wherewithal] to pay (Tur in the name of Rambam). Some authorities say we do not force him to divorce since he does have [the money to give] (Ri in the name of Rabbenu Tam). He who has food for only one day must give it to his wife or to eat it along with her (Tur in the name of haRamah - R. Meir Halevi). Some authorities say additionally that he must hire himself out as a worker and to feed his wife (Tur in the name of R. Eliyah and Moharam in the name of the Rabbis in France). If he had lands, the woman has the right to take her sustenance from the usufruct of the land or the capital value of the land itself, or he has to sell them (Responsa Rashba chapter 890).