Mishnayos Rosh Hashanah Perek 2 Mishnah 9

Upon hearing that Rabbi Yehoshua had challenged his ruling, Rabban Gamliel sent a message to him: I decree against you that you must appear before me with your staff and with your money on the day on which Yom Kippur occurs according to your calculation; according to my calculation, that day is the eleventh of Tishrei, the day after Yom Kippur. Rabbi Akiva went and found Rabbi Yehoshua distressed that the head of the Great Sanhedrin was forcing him to desecrate the day that he maintained was Yom Kippur. In an attempt to console him, Rabbi Akiva said to Rabbi Yehoshua: I can learn from a verse that everything that Rabban Gamliel did in sanctifying the month is done, i.e., it is valid. As it is stated: “These are the appointed seasons of the Lord, sacred convocations, which you shall proclaim in their season” (Leviticus 23:4). This verse indicates that whether you have proclaimed them at their proper time or whether you have declared them not at their proper time, I have only these Festivals as established by the representatives of the Jewish people. Rabbi Yehoshua then came to Rabbi Dosa ben Horkinas, who said to him: If we come to debate and question the rulings of the court of Rabban Gamliel, we must debate and question the rulings of every court that has stood from the days of Moses until now. As it is stated: “Then Moses went up, and Aaron, Nadav and Avihu, and seventy of the Elders of Israel” (Exodus 24:9). But why were the names of these seventy Elders not specified? Rather, this comes to teach that every set of three judges that stands as a court over the Jewish people has the same status as the court of Moses. Since it is not revealed who sat on that court, apparently it is enough that they were official judges in a Jewish court. When Rabbi Yehoshua heard that even Rabbi Dosa ben Horkinas maintained that they must submit to Rabban Gamliel’s decision, he took his staff and his money in his hand, and went to Yavne to Rabban Gamliel on the day on which Yom Kippur occurred according to his own calculation. Upon seeing him, Rabban Gamliel stood up and kissed him on his head. He said to him: Come in peace, my teacher and my student. You are my teacher in wisdom, as Rabbi Yehoshua was wiser than anyone else in his generation, and you are my student, as you accepted my statement, despite your disagreement.

שָׁלַח לוֹ רַבָּן גַּמְלִיאֵל, גּוֹזְרַנִי עָלֶיךָ שֶׁתָּבֹא אֶצְלִי בְּמַקֶּלְךָ וּבִמְעוֹתֶיךָ בְּיוֹם הַכִּפּוּרִים שֶׁחָל לִהְיוֹת בְּחֶשְׁבּוֹנְךָ. הָלַךְ וּמְצָאוֹ רַבִּי עֲקִיבָא מֵצֵר, אָמַר לוֹ, יֶשׁ לִי לִלְמוֹד שֶׁכָּל מַה שֶּׁעָשָׂה רַבָּן גַּמְלִיאֵל עָשׂוּי, שֶׁנֶּאֱמַר (ויקרא כג), אֵלֶּה מוֹעֲדֵי יְיָ מִקְרָאֵי קֹדֶשׁ, אֲשֶׁר תִּקְרְאוּ אֹתָם, בֵּין בִּזְמַנָּן בֵּין שֶׁלֹּא בִזְמַנָּן, אֵין לִי מוֹעֲדוֹת אֶלָּא אֵלּוּ. בָּא לוֹ אֵצֶל רַבִּי דוֹסָא בֶּן הַרְכִּינָס, אָמַר לוֹ, אִם בָּאִין אָנוּ לָדוּן אַחַר בֵּית דִּינוֹ שֶׁל רַבָּן גַּמְלִיאֵל, צְרִיכִין אָנוּ לָדוּן אַחַר כָּל בֵּית דִּין וּבֵית דִּין שֶׁעָמַד מִימוֹת משֶׁה וְעַד עַכְשָׁיו, שֶׁנֶּאֱמַר (שמות כד), וַיַּעַל משֶׁה וְאַהֲרֹן נָדָב וַאֲבִיהוּא וְשִׁבְעִים מִזִּקְנֵי יִשְׂרָאֵל. וְלָמָּה לֹא נִתְפָּרְשׁוּ שְׁמוֹתָן שֶׁל זְקֵנִים, אֶלָּא לְלַמֵּד, שֶׁכָּל שְׁלשָׁה וּשְׁלשָׁה שֶׁעָמְדוּ בֵית דִּין עַל יִשְׂרָאֵל, הֲרֵי הוּא כְבֵית דִּינוֹ שֶׁל משֶׁה. נָטַל מַקְלוֹ וּמְעוֹתָיו בְּיָדוֹ, וְהָלַךְ לְיַבְנֶה אֵצֶל רַבָּן גַּמְלִיאֵל בְּיוֹם שֶׁחָל יוֹם הַכִּפּוּרִים לִהְיוֹת בְּחֶשְׁבּוֹנוֹ. עָמַד רַבָּן גַּמְלִיאֵל וּנְשָׁקוֹ עַל רֹאשׁוֹ, אָמַר לוֹ, בֹּא בְשָׁלוֹם, רַבִּי וְתַלְמִידִי, רַבִּי בְחָכְמָה, וְתַלְמִידִי שֶׁקִּבַּלְתָּ דְּבָרָי: