כְּכוֹתֶבֶת שֶׁאָמְרוּ, בְּגַרְעִינָתָהּ: אוֹ בְּלֹא גַּרְעִינָתָהּ? בָּעֵי רַב אָשֵׁי: עֶצֶם כִּשְׂעוֹרָה, בִּקְלִיפָּתָהּ אוֹ בְּלֹא קְלִיפָּתָהּ, בְּלַחָה אוֹ בִּיבֵשָׁה? רַב אָשֵׁי לָא מִבַּעְיָא לֵיהּ הָא דְּרַב פָּפָּא, ״גַּסָּה״ אִיתְּמַר — כֹּל כַּמָּה דְּגַסָּה. רַב פָּפָּא לָא מִבַּעְיָא לֵיהּ הָא דְּרַב אָשֵׁי: לַחָה — שִׁבּוֹלֶת מִיקְּרֵי, שֶׁלֹּא בִּקְלִיפָּתָהּ — אוּשְׁלָא מִיקְּרֵי. The large date-bulk that they said is the measure that determines liability for eating on Yom Kippur, does this refer to the volume of a large date with its pit or without its pit? Rav Ashi asked a similar question: The mishna that states that a bone that is a barley-grain-bulk imparts ritual impurity, does this refer to the volume of a barley grain with its husk or without its husk? And is that referring to a wet kernel or a dry one? The Gemara clarifies: Rav Ashi did not ask the question that Rav Pappa asked, regarding the size of the date-bulk on Yom Kippur because the answer was clear to him. Since it is stated in the mishna: Large, it means as large as possible, which must include the pit. Conversely, Rav Pappa did not ask the question that Rav Ashi asked regarding the size of the barley-grain-bulk because the answer was clear to him. Wet barley is called shibbolet and not barley; without its shell it is no longer called barley but is called ushla. Therefore, the mishna must be referring to dry barley within its shell.
אָמַר (רָבָא) אָמַר רַב יְהוּדָה: כּוֹתֶבֶת הַגַּסָּה שֶׁאָמְרוּ, יְתֵירָה מִכְּבֵיצָה. וְקִים לְהוּ לְרַבָּנַן דִּבְהָכִי מִיַּתְּבָא דַּעְתֵּיהּ, בְּצִיר מֵהֲכִי — לָא מִיַּתְּבָא דַּעְתֵּיהּ. מֵיתִיבִי: מַעֲשֶׂה וְהֵבִיאוּ לְרַבָּן יוֹחָנָן בֶּן זַכַּאי לִטְעוֹם אֶת הַתַּבְשִׁיל, וּלְרַבָּן גַּמְלִיאֵל שְׁתֵּי כוֹתָבוֹת וּדְלִי שֶׁל מַיִם. וְאָמְרוּ: הַעֲלוּם לַסּוּכָּה. וְתָנֵי עֲלַהּ: לָא מִפְּנֵי שֶׁהֲלָכָה כָּךְ, אֶלָּא שֶׁרָצוּ לְהַחֲמִיר עַל עַצְמָן. Rava said that Rav Yehuda said: The volume of a large date that they said is larger than an egg-bulk. The Sages have an accepted tradition that with this amount of food, the mind of the one who eats is settled, and he is not afflicted. Less than this amount, the mind is not settled. The Gemara raises an objection from what we have learned: An incident happened on the festival of Sukkot. They brought a cooked dish to Rabban Yoḥanan ben Zakkai to taste, and they brought to Rabban Gamliel two dates and a tankard of water. Rabban Yoḥanan ben Zakkai and Rabban Gamliel said to them: Bring them up to the sukka, and we will eat there. And a baraita was taught in that regard: They did not act this way because that is the halakha, that such food must be eaten in the sukka. Rather, they wished to be stringent upon themselves and not eat anything outside of the sukka.
וּכְשֶׁנָּתְנוּ לוֹ לְרַבִּי צָדוֹק אוֹכֶל פָּחוֹת מִכְּבֵיצָה — נְטָלוֹ בְּמַפָּה וַאֲכָלוֹ חוּץ לַסּוּכָּה, וְלֹא בֵּירַךְ אַחֲרָיו. On the other hand, the Gemara reports: And when they gave Rabbi Tzadok food that was less than an egg-bulk to eat, he held it in a cloth and did not wash his hands. And he ate it outside of the sukka and did not recite Grace after Meals afterward.