הַמּוֹצֵא שְׁטַר חוֹב אַף עַל פִּי שֶׁלֹּא פֵּרֵשׁ בּוֹ אַחֲרָיוּת נְכָסִים וְאַף עַל פִּי שֶׁהַחַיָּב מוֹדֶה וְאַף עַל פִּי שֶׁהוּא מְקֻיָּם הֲרֵי זֶה לֹא יַחְזִיר. שֶׁמָּא פְּרָעוֹ וּקְנוּנְיָא הֵם עוֹשִׂים כְּדֵי לִטְרֹף לָקוֹחוֹת שֶׁלֹּא כַּדִּין וּלְפִיכָךְ הוֹדָה לוֹ שֶׁהֲרֵי יֵשׁ לוֹ לִטְרֹף בִּשְׁטָר שֶׁלֹּא פֵּרֵשׁ בּוֹ אַחֲרָיוּת. שֶׁהָאַחֲרָיוּת שֶׁלֹּא נִתְפָּרְשָׁה טָעוּת סוֹפֵר הוּא בֵּין בְּשִׁטְרֵי הַלְוָאָה בֵּין בְּשִׁטְרֵי מִקָּח וּמִמְכָּר. לְפִיכָךְ אִם פֵּרֵשׁ בִּשְׁטָר זֶה שֶׁהוּא שֶׁלֹּא בְּאַחֲרָיוּת אִם הָיָה הַחַיָּב מוֹדֶה יַחְזִיר וְאִם לָאו לֹא יַחְזִיר שֶׁמָּא פְּרָעוֹ:
When a person finds a promissory note, he should not return it. This applies even if the note does not explicitly say that it creates a lien on the debtor's landed property, the presumed debtor acknowledges his obligation, and the signatures of the witnesses have been validated. The rationale is that we suspect that the note was already paid, and the creditor and the debtor are joining together to deceive the purchasers of the debtor's landed property and expropriate that property unlawfully. This is the reason why the debtor acknowledges the creditor's claim. For the creditor can expropriate property sold by the debtor with this promissory note, even though it does not explicitly say that it creates a lien on the debtor's landed property. We follow the principle that the omission of a clause mentioning the creation of a lien on the debtor's landed property in a legal document is merely a scribal error. This applies with regard to both promissory notes and deeds of sale. Therefore, if the promissory note states explicitly that it does not create a lien on the landed property, and the debtor acknowledges his obligation, the note may be returned. If not, the finder should not return it, lest it have been paid.
