Mishnayos Kesuvos Perek 12 Mishnah 3

In the case of a widow who said: I do not want to move from my husband’s house, but instead I wish to remain there, the heirs are not able to say to her: Go to your father’s house and we will sustain you. Rather, they sustain her in her husband’s house and they give her living quarters befitting her dignity. However, if she said: I do not want to move from my father’s house, and you should bring me my support there, the heirs are able to say to her: If you are living with us, you will have sustenance from us, but if you are not living with us, you will not have sustenance from us. If she argued that she does not wish to live in her deceased husband’s house because she is young, and they, the heirs, are also young, and it is improper for them to be living in the same house together, then they sustain her and she stays in her father’s house.

אַלְמָנָה שֶׁאָמְרָה אִי אֶפְשִׁי לָזוּז מִבֵּית בַּעְלִי, אֵין הַיּוֹרְשִׁין יְכוֹלִין לוֹמַר לָהּ לְכִי לְבֵית אָבִיךְ וְאָנוּ זָנִין אוֹתָךְ, אֶלָּא זָנִין אוֹתָהּ בְּבֵית בַּעְלָהּ וְנוֹתְנִין לָהּ מָדוֹר לְפִי כְבוֹדָהּ. אָמְרָה אִי אֶפְשִׁי לָזוּז מִבֵּית אַבָּא, יְכוֹלִים הַיּוֹרְשִׁים לוֹמַר לָהּ, אִם אַתְּ אֶצְלֵנוּ יֶשׁ לִיךְ מְזוֹנוֹת, וְאִם אֵין אַתְּ אֶצְלֵנוּ אֵין לִיךְ מְזוֹנוֹת. אִם הָיְתָה טוֹעֶנֶת מִפְּנֵי שֶׁהִיא יַלְדָּה וְהֵן יְלָדִים, זָנִין אוֹתָהּ וְהִיא בְּבֵית אָבִיהָ: