(ג) כֵּיצַד מְזַמְּנִין, בִּשְׁלשָׁה אוֹמֵר נְבָרֵךְ. בִּשְׁלשָׁה וְהוּא, אוֹמֵר בָּרְכוּ. בַּעֲשָׂרָה, אוֹמֵר נְבָרֵךְ לֵאלֹקֵינוּ. בַּעֲשָׂרָה וָהוּא, אוֹמֵר בָּרְכוּ. אֶחָד עֲשָׂרָה וְאֶחָד עֲשָׂרָה רִבּוֹא. ... אָמַר רַבִּי עֲקִיבָא, מַה מָּצִינוּ בְּבֵית הַכְּנֶסֶת, אֶחָד מְרֻבִּין וְאֶחָד מֻעָטִין אוֹמֵר, בָּרְכוּ אֶת ה'. רַבִּי יִשְׁמָעֵאל אוֹמֵר, בָּרְכוּ אֶת ה' הַמְבֹרָךְ:
(3) How do they invite [one another to recite the Birkat Hamazon]?If there are three, he [the one saying Birkat Hamazon] says, “Let us bless [Him of whose food we have eaten].” If there are three and him he says, “Bless [Him of whose food we have eaten]” If there are ten, he says, “Let us bless our God [of whose food we have eaten].” If there are ten and he says, “Bless.” It is the same whether there are ten or ten myriads (ten ten thousands)... Rabbi Akiba said: What do we find in the synagogue? Whether there are many or few the he says, “Bless Hashem your God.” Rabbi Ishmael says: “Bless Hashem your God who is blessed.”
(א) אָמַר לָהֶם הַמְמֻנֶּה, בָּרְכוּ בְרָכָה אֶחַת, וְהֵן בֵּרְכוּ. קָרְאוּ עֲשֶׂרֶת הַדְּבָרִים, שְׁמַע, וְהָיָה אִם שָׁמֹעַ, וַיֹּאמֶר. בֵּרְכוּ אֶת הָעָם שָׁלשׁ בְּרָכוֹת, אֱמֶת וְיַצִּיב, וַעֲבוֹדָה, וּבִרְכַּת כֹּהֲנִים. וּבְשַׁבָּת מוֹסִיפִין בְּרָכָה אַחַת לַמִּשְׁמָר הַיּוֹצֵא:
(1) The superintendent said to them: Bless one blessing! And they blessed. They then read the Ten Commandments, the Shema, the “And it will be if you hearken” (the second paragraph of Shema) and Vayomer (the third paragraph of Shema), and they blessed the people with three blessings: Emet veYatziv, and Avodah, and the priestly benediction. On Shabbat they added a blessing to be said by the watch which was leaving.