The Mishnah
ברכות ז׳Berakhot 7
Perek 7 of 9 in Berakhot — 5 mishnayot
Mishnah 1א׳
שְׁלשָׁה שֶׁאָכְלוּ כְאֶחָד, חַיָּבִין לְזַמֵּן. אָכַל דְּמַאי, וּמַעֲשֵׂר רִאשׁוֹן שֶׁנִּטְּלָה תְרוּמָתוֹ, וּמַעֲשֵׂר שֵׁנִי וְהֶקְדֵּשׁ שֶׁנִּפְדּוּ, וְהַשַּׁמָּשׁ שֶׁאָכַל כַּזַּיִת, וְהַכּוּתִי, מְזַמְּנִין עֲלֵיהֶם. אֲבָל אָכַל טֶבֶל, וּמַעֲשֵׂר רִאשׁוֹן שֶׁלֹּא נִטְּלָה תְרוּמָתוֹ, וּמַעֲשֵׂר שֵׁנִי וְהֶקְדֵּשׁ שֶׁלֹּא נִפְדּוּ, וְהַשַּׁמָּשׁ שֶׁאָכַל פָּחוֹת מִכַּזַּיִת, וְהַנָּכְרִי, אֵין מְזַמְּנִין עֲלֵיהֶם:
If three people eat together they are obligated to convene [to say the blessing after a meal]. If he ate food which may not have been tithed, or the first tithe from which Terumah [produce consecrated for priestly consumption] had been removed, or the second tithe or Hekdesh [items pledged for sacred use] that had been redeemed, or a servant that had eaten an olive['s volume], or a Kuti [sect closely tied to Judaism], he must convene with them. But if he ate untithed produce, or the first tithe from which Terumah had not been removed, or the second tithe or sanctified [food] which had not been redeemed, or a servant who ate less than an olive['s volume], or a non-Jew, he cannot convene with them.
Mishnah 2ב׳
נָשִׁים וַעֲבָדִים וּקְטַנִּים, אֵין מְזַמְּנִין עֲלֵיהֶם. עַד כַּמָּה מְזַמְּנִין, עַד כַּזָּיִת. רַבִּי יְהוּדָה אוֹמֵר, עַד כַּבֵּיצָה:
Women, slaves, and children--one cannot convene with them. How much is needed [to be eaten in order] to convene? At least an olive['s volume]. Rabbi Yehuda says at least an egg['s volume].
Mishnah, Torat Emet 357 edition, via Sefaria — public domain
English: Open Mishnah, Wikisource, via Sefaria — CC BY-SA