כָּל אֹכֶל אָדָם הַנִּשְׁמָר שֶׁגִּדּוּלָיו מִן הָאָרֶץ חַיָּב בִּתְרוּמָה. וּמִצְוַת עֲשֵׂה לְהַפְרִישׁ מִמֶּנּוּ רֵאשִׁית לַכֹּהֵן שֶׁנֶּאֱמַר (דברים יח ד) "רֵאשִׁית דְּגָנְךָ תִּירשְׁךָ וְיִצְהָרֶךָ" (דברים יח ד) "תִּתֶּן לּוֹ". מַה דָּגָן תִּירוֹשׁ וְיִצְהָר מַאֲכַל בְּנֵי אָדָם וְגִדּוּלָיו מִן הָאָרֶץ וְיֵשׁ לוֹ בְּעָלִים שֶׁנֶּאֱמַר דְּגָנְךָ אַף כָּל כַּיּוֹצֵא בָּהֶן חַיָּב בִּתְרוּמוֹת וְכֵן בְּמַעַשְׂרוֹת:
[We are] obligated [to separate] terumah from food [designated] for human [consumption], that is guarded, and that grows from the earth. It is a positive commandment to separate the first portion [of such crops] for a priest, as [Deuteronomy 18:4] states: "You shall give him the first portion of your grain, your wine, and your oil." Just as grain, wine, and oil are [agricultural produce that] is food that is designated for humans, grows from the earth, and has an owner - as indicated by the term "your grain," - so, too, [we are] obligated to [separate] terumot and tithes from any analogous [agricultural produce].
