וְאֵלּוּ דְבָרִים מִתְעַשְּׂרִין דְּמַאי בְּכָל מָקוֹם. הַדְּבֵלָה, וְהַתְּמָרִים, וְהֶחָרוּבִים, הָאֹרֶז, וְהַכַּמּוֹן. הָאֹרֶז שֶׁבְּחוּצָה לָאָרֶץ, כָּל הַמִּשְׁתַּמֵּשׁ מִמֶּנּוּ פָּטוּר: The following things must be tithed as demai in all places: pressed figs, dates, carobs, rice, and cumin. As to rice from outside the land [of Israel], whoever uses it is exempt from tithing it.
הַמְקַבֵּל עָלָיו לִהְיוֹת נֶאֱמָן, מְעַשֵּׂר אֶת שֶׁהוּא אוֹכֵל, וְאֶת שֶׁהוּא מוֹכֵר, וְאֶת שֶׁהוּא לוֹקֵחַ, וְאֵינוֹ מִתְאָרֵחַ אֵצֶל עַם הָאָרֶץ. רַבִּי יְהוּדָה אוֹמֵר, אַף הַמִּתְאָרֵחַ אֵצֶל עַם הָאָרֶץ נֶאֱמָן. אָמְרוּ לוֹ, עַל עַצְמוֹ אֵינוֹ נֶאֱמָן, כֵּיצַד יְהֵא נֶאֱמָן עַל שֶׁל אֲחֵרִים: One who accepts upon himself to be trustworthy (ne’eman), must tithe whatever he eats and whatever he sells and whatever he buys, and he may not be the guest of an am haaretz. Rabbi Judah says: even one who is the guest of an am haaretz can still be considered trustworthy. They said to him: He is not trustworthy in respect of himself! How can he be considered trustworthy in respect of others?
הַמְקַבֵּל עָלָיו לִהְיוֹת חָבֵר, אֵינוֹ מוֹכֵר לְעַם הָאָרֶץ לַח וְיָבֵשׁ, וְאֵינוֹ לוֹקֵחַ מִמֶּנּוּ לַח, וְאֵינוֹ מִתְאָרֵח אֵצֶל עַם הָאָרֶץ, וְלֹא מְאָרְחוֹ אֶצְלוֹ בִּכְסוּתוֹ. רַבִּי יְהוּדָה אוֹמֵר, אַף לֹא יְגַדֵּל בְּהֵמָה דַקָּה, וְלֹא יְהֵא פָרוּץ בִּנְדָרִים וּבִשְׂחוֹק, וְלֹא יְהֵא מִטַּמֵּא לְמֵתִים, וּמְשַׁמֵּשׁ בְּבֵית הַמִּדְרָשׁ. אָמְרוּ לוֹ, לֹא בָאוּ אֵלּוּ לַכְּלָל: One who takes upon himself to become a “chaver” may not sell to an am haaretz either moist or dry [produce], nor may he buy from him moist [produce], nor may he be the guest of an am haaretz, nor may he host an am haaretz as a guest while [the am haaretz] is wearing his own garment. Rabbi Judah says: he may not also raise small animals, nor may make a lot of vows or merriment, nor may he defile himself by contact with the dead. Rather he should be an attendant at the house of study. They said to him: these [requirements] do not come within the general rule [of being a chaver].
הַנַּחְתּוֹמִים, לֹא חִיְּבוּ אוֹתָם חֲכָמִים לְהַפְרִישׁ אֶלָּא כְדֵי תְרוּמַת מַעֲשֵׂר וְחַלָּה. הַחֶנְוָנִים אֵינָן רַשָּׁאִין לִמְכֹּר אֶת הַדְּמַאי. כָּל הַמַּשְׁפִּיעִין בְּמִדָּה גַסָּה, רַשָּׁאִין לִמְכֹּר אֶת הַדְּמַאי. אֵלּוּ הֵן הַמַּשְׁפִּיעִין בְּמִדָּה גַסָּה, כְּגוֹן הַסִּיטוֹנוֹת וּמוֹכְרֵי תְבוּאָה: Bakers the sages did not obligate them to separate [from demai produce] any more than suffices for terumat maaser and for hallah. Grocers may not sell demai [produce]. All [merchants] who supply in large quantities may sell demai. Who are those who supply in large quantities? Those such as wholesalers and grain-sellers.
רַבִּי מֵאִיר אוֹמֵר, אֶת שֶׁדַּרְכּוֹ לְהִמָּדֵד בְּגַסָּה וּמְדָדוֹ בְדַקָּה, טְפֵלָה דַקָּה לַגַּסָּה. אֶת שֶׁדַּרְכּוֹ לְהִמָּדֵד בְּדַקָּה וּמָדַד בַּגַסָּה, טְפֵלָה גַסָּה לַדַּקָּה. אֵיזוֹ הִיא מִדָּה גַסָּה, בְּיָבֵשׁ, שְׁלשֶׁת קַבִּין, וּבְלַח, דִּינָר. רַבִּי יוֹסֵי אוֹמֵר, סַלֵּי תְאֵנִים וְסַלֵּי עֲנָבִים וְקֻפּוֹת שֶׁל יָרָק, כָּל זְמַן שֶׁהוּא מוֹכְרָן אַכְסָרָה, פָּטוּר: Rabbi Meir says: [if produce] which is usually measured out [for sale] in a large [quantity] was measured out in a small [quantity], the small quantity is treated as if it was a large [quantity]. If [produce] which is usually measured out for sale in a small [quantity] was measured out in a large [quantity], the large [quantity] is treated as if it was a small [quantity]. What is considered a large quantity? For dry [produce] three kavs, and for liquids, the value of one dinar. Rabbi Yose says: baskets of figs, baskets of grapes, and bushels of vegetables when he sells them in lumps, they are exempt [from the rules of demai].