אבן העזר צ״בEven HaEzer 92

Se’if 1א׳

הַכּוֹתֵב אוֹ הָאוֹמֵר לְאִשְׁתּוֹ בְּעוֹדָהּ אֲרוּסָה: "דִּין וּדְבָרִים אֵין לִי בִּנְכָסַיִךְ", אִם מָכְרָה אוֹ נָתְנָה, קַיָּם. וְאֵין לוֹ בְּמָעוֹת הַמִּקָּח כְּלָל (הַגָּהוֹת אַלְפָסִי). וְכָל זְמַן שֶׁלֹּא מָכְרָה וְלֹא נָתְנָה, הַבַּעַל אוֹכֵל הַפֵּרוֹת, וְאִם מֵתָה יוֹרְשָׁהּ. וְאִם כָּתַב לָהּ כֵּן אַחַר הַנִּשּׂוּאִין, צָרִיךְ לִקְנוֹת מִיָּדוֹ וְאָז יִהְיֶה מִכְרָהּ וּמַתְּנָתָהּ קַיָּם. הַגָּה: וְלָא מְהַנֵּי סִלּוּקוֹ אֶלָּא לְאַחַר אֵרוּסִין, אֲבָל קֹדֶם אֵרוּסִין לָא מְהַנֵּי סִלּוּק (רַ"ן רֵישׁ פֶּרֶק הַכּוֹתֵב וְרַשְׁבָּ"א סִימָן תתק"ס):

If one wrote or said to his wife when they were still engaged, "I have no legal claim on your assets," and she sold or gave them, [the sale or claim] stands. And he has no interest in the cash of the deal (Alfasi notes). And as long as she had not sold or given [the assets], the husband enjoys the income of them, and if she dies he inherits from her. And if he wrote that to her after they were married, he must buy it from him, and then her sale and her gift stand. Note: and he needed defray it unless it was after they were engaged, but if it was before they were engaged he does not have to defray it. (R'an, the beginning of the chapter HaKotev, and Rashba, paragraph 960).

Se’if 2ב׳

אִם הִתְנָה בְּעוֹדָהּ אֲרוּסָה עַל נְכָסִים שֶׁיִּפְּלוּ לָהּ מִשֶּׁנִּשֵּׂאת שֶׁלֹּא יְהֵא לוֹ דִּין וּדְבָרִים בָּהֶם, מוֹעִיל. וְיֵשׁ מִי שֶׁאוֹמֵר שֶׁאֵינוֹ מוֹעִיל. הַגָּה: סִלֵּק עַצְמוֹ מִנְּכָסִים, יֵשׁ אוֹמְרִים שֶׁאֵין הַנְּכָסִים הַכְּתוּבִים בִּכְתֻבָּתָהּ בִּכְלָל (מָרְדְּכַי פֶּרֶק הַכּוֹתֵב בְּשֵׁם רִיצְבָ"א); וַאֲפִלּוּ נְכָסִים שֶׁנָּפְלוּ לָהּ אַחַר כָּךְ אֵינוֹ בִּכְלָל (מַהֲרִי"ק שֹׁרֶשׁ י"ג), אֶלָּא אִם כֵּן פֵּרַשׁ בְּהֶדְיָא:

If she stipulates while still in erusin [engagement] that any propert that falls to her [in inheritance] once she gets married will not belong to him in law and practice, it takes effect. And some say it does not take effect. Rem"a: If he removes himself from those properties, some say the property is not written into her ketubah at all (Mordechai Perek Hakotev in the name of the Ritzb"a); and even property that falls to her [in inheritance] afterwards is not included (Mahrik root 13), unless explicitly stated.

Se’if 3ג׳

כְּשֶׁאָמַר לָהּ בְּעוֹדָהּ אֲרוּסָה: דִּין וּדְבָרִים אֵין לִי בִּנְכָסַיִךְ, אִם קָנוּ מִיָּדוֹ הֲרֵי סִלֵּק עַצְמוֹ מִגּוּף הַקַּרְקַע וְאֵין לוֹ בִּנְכָסֶיהָ פֵּרוֹת לְעוֹלָם. וְיֵשׁ מִי שֶׁחוֹלֵק בָּזֶה:

If he says to her while she is still in erusin [engagement], "I will have no legal standing in your property," if they acquire it from his hand he has taken himself out of the body of the land and he only has the produce of the land ever. Some argue against that.