6שִׁמְעוֹן שֶׁלָּוָה וְהָיָה רְאוּבֵן עָרֵב וּבָא יְהוּדָה לְעַרְעֵר עַל שִׁמְעוֹן הַלּוֶֹה וְהוֹצִיא קַרְקַע מִתַּחַת יָדוֹ. אִם יֵשׁ לְשִׁמְעוֹן שָׂדֶה אַחֶרֶת כְּנֶגֶד הַחוֹב הֲרֵי רְאוּבֵן הֶעָרֵב יֵשׁ לוֹ לְהָעִיד עַל אוֹתוֹ קַרְקַע שֶׁהִיא שֶׁל שִׁמְעוֹן. שֶׁאֵין לוֹ הֲנָאָה בָּזֶה שֶׁאִם לְקָחָהּ יְהוּדָה הֲרֵי שָׂדֶה אַחֶרֶת שֶׁיִּפָּרַע מִמֶּנָּה בַּעַל חוֹבוֹ. וְכֵן לוֹקֵחַ רִאשׁוֹן מֵעִיד לְלוֹקֵחַ שֵׁנִי שֶׁלָּקַח אַחֲרָיו שֶׁזֶּה הַשָּׂדֶה שֶׁלּוֹ. וְהוּא שֶׁיֵּשׁ לַמּוֹכֵר שָׂדֶה בֶּן חוֹרִין כְּנֶגֶד דְּמֵי שָׂדֶה שֶׁל לוֹקֵחַ רִאשׁוֹן. שֶׁאֵין לְלוֹקֵחַ רִאשׁוֹן הֲנָאָה בַּעֲמִידַת זֶה הַשָּׂדֶה בְּיַד לוֹקֵחַ שֵׁנִי. שֶׁאֲפִלּוּ נִטְרַף לוֹקֵחַ הָרִאשׁוֹן עַל הַמּוֹכֵר הוּא חוֹזֵר וַהֲרֵי יֵשׁ לוֹ שָׂדֶה אַחֶרֶת שֶׁיִּגְבֶּה מִמֶּנָּה:
The following rules apply if Shimon borrowed money and Reuven guaranteed the debt. Yehudah entered into litigation against Shimon and sought to expropriate landed property from his possession. If Shimon possesses another field equal in value to the debt guaranteed by Reuven, Reuven may testify with regard to the land, asserting that it belongs to Shimon. He does not derive any benefit from this, for even if Yehudah would expropriate the field, Shimon possesses another field from which the creditor could derive payment. Similarly, a person who purchased a field may testify on behalf of another person who purchased a field from the same seller and affirm that the field is his. This applies provided the seller owns a field that is not on lien that is equivalent to the value of the field acquired by the first purchaser. In such a situation, the first purchaser does not derive any benefit from the field remaining in the possession of the second purchaser, for even if the field he purchased is expropriated from him, he may seek reimbursement from the seller and the seller possesses another field from which he could expropriate his due.