בֵּית דִּין שֶׁנֶּחְלְקוּ מִקְצָתָם אוֹמְרִים זַכַּאי וּמִקְצָתָם אוֹמְרִים חַיָּב הוֹלְכִין אַחַר הָרֹב. וְזוֹ מִצְוַת עֲשֵׂה שֶׁל תּוֹרָה שֶׁנֶּאֱמַר (שמות כג ב) "אַחֲרֵי רַבִּים לְהַטֹּת". בַּמֶּה דְּבָרִים אֲמוּרִים בְּדִינֵי מָמוֹנוֹת וּבִשְׁאָר דִּינֵי אָסוּר וּמֻתָּר וְטָמֵא וְטָהוֹר וְכַיּוֹצֵא בָּהֶן. אֲבָל בְּדִינֵי נְפָשׁוֹת אִם נֶחְלְקוּ בָּזֶה הַחוֹטֵא אִם יֵהָרֵג אוֹ לֹא יֵהָרֵג. אִם הָיוּ הָרֹב מְזַכִּים זַכַּאי וְאִם הָיוּ הָרֹב מְחַיְּבִין אֵינוֹ נֶהֱרָג עַד שֶׁיִּהְיוּ הַמְחַיְּבִין יֶתֶר עַל הַמְזַכִּים שְׁנַיִם. מִפִּי הַשְּׁמוּעָה לָמְדוּ שֶׁעַל זֶה הִזְהִירָה תּוֹרָה וְאָמְרָה (שמות כג ב) "לֹא תִהְיֶה אַחֲרֵי רַבִּים לְרָעֹת". כְּלוֹמַר אִם הָרֹב נוֹטִים לְרָעָה לַהֲרֹג לֹא תִּהְיֶה אַחֲרֵיהֶם עַד שֶׁיִּטּוּ הַטָּיָה גְּדוֹלָה וְיוֹסִיפוּ הַמְחַיְּבִין שְׁנַיִם. שֶׁנֶּאֱמַר (שמות כג ב) "לִנְטֹת אַחֲרֵי רַבִּים לְהַטֹּת" הַטָּיָתְךָ לְטוֹבָה עַל פִּי אֶחָד לְרָעָה עַל פִּי שְׁנַיִם. וְכָל אֵלּוּ הַדְּבָרִים קַבָּלָה הֵם:
When a court reaches a split decision - some say that the defendant is not liable, and others say that he is liable, we follow the majority. This is a positive mitzvah of Scriptural origin, as Exodus 23:2 states: "Follow after the inclination of the majority." When does the above apply? With regard to financial matters and with regard to laws involving questions of what is forbidden and what is permitted, what is impure and what is pure and the like. With regard to capital cases, different laws apply if there is a difference of opinion whether the transgressor should be executed or not. If the majority rule to exonerate him, he is exonerated. If, however, the majority rules that he is guilty, he should not be executed until there are at least two more judges who hold him guilty than who exonerate him. According to the Oral Tradition, we learned that the Torah warned against this saying Ibid.: "Do not follow the majority to do harm." That is to say that if the majority are inclined "to do harm," i.e., to execute the defendant, you should not follow them until there is a significant inclination, and there is a majority of two judges who rule that he is guilty. This is implied by (Ibid.): "to follow the inclination of the majority and influence the judgment." A positive inclination may be made on the basis of a majority of one, a harmful inclination, on the basis of a majority of two. All of these concepts are based on the Oral Tradition.
