מַקְנֶה אָדָם הַגּוּף לְפֵרוֹתָיו בֵּין בְּמֶכֶר בֵּין בְּמַתָּנָה בֵּין בְּמַתְּנַת שְׁכִיב מֵרַע. וְאֵין זֶה מַקְנֶה דָּבָר שֶׁלֹּא בָּא לְעוֹלָם שֶׁהֲרֵי הַגּוּף מָצוּי וּמַקְנֶה לְפֵרוֹת. הָא לְמָה זֶה דּוֹמֶה לְשׂוֹכֵר בַּיִת אוֹ שָׂדֶה לַחֲבֵרוֹ שֶׁלֹּא הִקְנָה לוֹ הַגּוּף אֶלָּא הֲנָאַת הַגּוּף:
A person can transfer ownership over a property itself with regard to the produce it yields. This applies with regard to a sale, with regard to a present or with regard to an oral will. This is not considered to be transferring ownership of an entity that has not come into existence. For the article itself exists, and the person is transferring ownership over its produce. To what can the matter be compared? To a person who rents a house or a field to a colleague, in which instance he did not transfer ownership over the property in its entirety, but rather merely the right to derive benefit from it.
