Sanhedrin5: 4
וְאַחַר כָּךְ, מַכְנִיסִין אֶת הַשֵּׁנִי וּבוֹדְקִין אוֹתוֹ. אִם נִמְצְאוּ דִבְרֵיהֶם מְכֻוָּנִין, פּוֹתְחִין בִּזְכוּת. אָמַר אֶחָד מִן הָעֵדִים ,,יֶשׁ לִי לְלַמֵּד עָלָיו זְכוּת”, אוֹ אֶחָד מִן הַתַּלְמִידִים ,,יֶשׁ לִי לְלַמֵּד עָלָיו חוֹבָה”, מְשַׁתְּקִין אוֹתוֹ. אָמַר אֶחָד מִן הַתַּלְמִידִים ,,יֶשׁ לִי לְלַמֵּד עָלָיו זְכוּת”, מַעֲלִין אוֹתוֹ וּמוֹשִׁיבִין אוֹתוֹ בֵּינֵיהֶן, וְלֹא הָיָה יוֹרֵד מִשָּׁם כָּל הַיּוֹם כֻּלּוֹ. אִם יֵשׁ מַמָּשׁ בִּדְבָרָיו, שׁוֹמְעִין לוֹ. וַאֲפִלּוּ הוּא אוֹמֵר ,,יֶשׁ לִי לְלַמֵּד עַל עַצְמִי זְכוּת”, שׁוֹמְעִין לוֹ, ובִלְבַד שֶׁיֵּשׁ מַמָּשׁ בִּדְבָרָיו.
After this, they admit the second [witness] and examine him. [If] their words concur, they open with [the consideration of] acquittal. [If] one of the witnesses says, “I can pre- sent grounds for his acquittal,” or one of the disciples [says,] “I can pre-sent grounds for his conviction,” they silence him. [If] one of the disciples says, “I can present grounds for his acquittal,” they elevate and seat him among them, and he does not descend from there the entire day. If there is substance to his words, they listen to him. Even if he says, “I can present grounds for my own acquittal,” they listen to him, as long as there is substance to his words.
Sanhedrin5: 5
אִם מָצְאוּ לוֹ זְכוּת, פְּטָרוּהוּ; וְאִם לָאו, מַעֲבִירִין דִּינוֹ לְמָחָר. הָיוּ מִזְדַּוְּגִין זוּגוֹת זוּגוֹת — וּמְמַעֲטִין בְּמַאֲכָל וְלֹא הָיוּ שׁוֹתִין יַיִן כָּל הַיּוֹם — וְנוֹשְׂאִין וְנוֹתְנִין כָּל הַלַּיְלָה. וְלַמָּחֳרָת מַשְׁכִּימִין וּבָאִין לְבֵית דִּין. הַמְזַכֶּה אוֹמֵר ,,אֲנִי מְזַכֶּה וּמְזַכֶּה אֲנִי בִמְקוֹמִי”. וְהַמְחַיֵּב אוֹמֵר ,,אֲנִי מְחַיֵּב וּמְחַיֵּב אֲנִי בִמְקוֹמִי”. הַמְלַמֵּד חוֹבָה מְלַמֵּד זְכוּת, אֲבָל הַמְלַמֵּד זְכוּת אֵינוֹ יָכוֹל לַחֲזוֹר וּלְלַמֵּד חוֹבָה. טָעוּ בַדָּבָר, שְׁנֵי סוֹפְרֵי הַדַּיָּנִין מַזְכִּירִין אוֹתָן. אִם מָצְאוּ לוֹ זְכוּת, פְּטָרוּהוּ; וְאִם לָאו, עוֹמְדִים לַמִּנְיָן. שְׁנֵים עָשָׂר מְזַכִּין וְאַחַד עָשָׂר מְחַיְּבִין, זַכַּאי. שְׁנֵים עָשָׂר מְחַיְּבִין וְאַחַד עָשָׂר מְזַכִּין, וַאֲפִלּוּ אַחַד עָשָׂר מְזַכִּין וְאַחַד עָשָׂר מְחַיְּבִין, וְאֶחָד אוֹמֵר ,,אֵינִי יוֹדֵעַ”, וַאֲפִלּוּ עֶשְׂרִים וּשְׁנַיִם מְזַכִּין אוֹ מְחַיְּבִין, וְאֶחָד אוֹמֵר ,,אֵינִי יוֹדֵעַ” — יוֹסִיפוּ הַדַּיָּנִין. עַד כַּמָּה מוֹסִיפִין? שְׁנַיִם שְׁנַיִם עַד שִׁבְעִים וְאֶחָד. שְׁלשִׁים וְשִׁשָּׁה מְזַכִּין וּשְׁלשִׁים וַחֲמִשָּׁה מְחַיְּבִין, זַכַּאי. שְׁלשִׁים וְשִׁשָּׁה מְחַיְּבִין וּשְׁלשִׁים וַחֲמִשָּׁה מְזַכִּין, דָּנִין אֵלּוּ כְּנֶגֶד אֵלּוּ עַד שֶׁיִּרְאֶה אֶחָד מִן הַמְחַיְּבִין דִּבְרֵי הַמְזַכִּין.
If they find a reason to acquit him, they acquit him; if not, they postpone his verdict until the next day. They then pair off —- limiting their [consumption of] food and abstaining from wine the entire day —- and analyze the matter through the night. On the following morning they arise early and come to court. The one who argued for acquittal declares, “I argued for ac-quittal and I maintain my position in favor of acquittal.” The one who argued for conviction says, “I argued for conviction and I maintain my position in favor of conviction.” One who argued for conviction may argue for acquittal, but one who argued for acquittal may not re- verse [himself] and argue for conviction. [If] they erred, the two judicial scribes remind them. If they find an argument to acquit him, they acquit him; if not, they take a vote. [If] twelve vote for acquittal and eleven for convic-tion, he is acquitted. [If] twelve vote for conviction and eleven for acquittal, or even eleven vote for acquittal and eleven for conviction, and one says, “I do not know,” or even twenty-two vote for acquittal or conviction, and one says, “I do not know” —- they add judges. Up to how many do they add? Two by two until [they reach] seventy-one. [If] thirty-six vote for acquittal and thirty-five for conviction, he is acquitted. [If] thirty-six vote for conviction and thirty-five for acquittal, they debate each other until one of those voting for conviction agrees with the opinion of those voting for acquittal.