2בַּמֶּה דְּבָרִים אֲמוּרִים בְּעֵדִים שֶׁהוּזְמוּ. אֲבָל שְׁתֵּי כִּתּוֹת הַמַּכְחִישׁוֹת זוֹ אֶת זוֹ וְאֵין כָּאן עֵדוּת אֵין עוֹנְשִׁין אֶת אַחַת מֵהֶן. לְפִי שֶׁאֵין אָנוּ יוֹדְעִים מִי הִיא הַכַּת הַשַּׁקְרָנִית. וּמַה בֵּין הַכְחָשָׁה לַהֲזָמָה. הַהַכְחָשָׁה בָּעֵדוּת עַצְמָהּ זֹאת אוֹמֶרֶת הָיָה הַדָּבָר הַזֶּה וְזֹאת אוֹמֶרֶת לֹא הָיָה הַדָּבָר הַזֶּה אוֹ יָבוֹא מִכְּלַל דְּבָרֶיהָ שֶׁלֹּא הָיָה. וְהַהֲזָמָה בָּעֵדִים עַצְמָן וְאֵלּוּ הָעֵדִים שֶׁהֱזִימוּם אֵינָן יוֹדְעִים אִם נִהְיָה הַדָּבָר אוֹ לֹא הָיָה. כֵּיצַד. עֵדִים שֶׁבָּאוּ וְאָמְרוּ רָאִינוּ זֶה שֶׁהָרַג אֶת הַנֶּפֶשׁ אוֹ לָוָה מָנֶה מִפְּלוֹנִי בְּיוֹם פְּלוֹנִי בְּמָקוֹם פְּלוֹנִי. וְאַחַר שֶׁהֵעִידוּ וְנִבְדְּקוּ בָּאוּ שְׁנַיִם אֲחֵרִים וְאָמְרוּ בְּיוֹם זֶה וּבְמָקוֹם זֶה הָיִינוּ עִמָּכֶם וְעִם אֵלּוּ כָּל הַיּוֹם. וְלֹא הָיוּ דְּבָרִים מֵעוֹלָם לֹא זֶה הָרַג אֶת זֶה וְלֹא זֶה הִלְוָה אֶת זֶה הֲרֵי זוֹ הַכְחָשָׁה. וְכֵן אִם אָמְרוּ לָהֶם הֵיאַךְ אַתֶּם מְעִידִים כָּךְ וְזֶה הַהוֹרֵג אוֹ הַנֶּהֱרָג אוֹ הַלּוֶֹה אוֹ הַמַּלְוֶה הָיָה עִמָּנוּ בְּיוֹם זֶה בִּמְדִינָה אַחֶרֶת. הֲרֵי זוֹ עֵדוּת מֻכְחֶשֶׁת שֶׁזֶּה כְּמִי שֶׁאָמַר לֹא הָרַג זֶה אֶת זֶה וְלֹא זֶה הִלְוָה אֶת זֶה שֶׁהֲרֵי עִמָּנוּ הָיוּ וְלֹא נִהְיָה דָּבָר זֶה. וְכֵן כָּל כַּיּוֹצֵא בִּדְבָרִים אֵלּוּ. אֲבָל אִם אָמְרוּ לָהֶם אָנוּ אֵין אָנוּ יוֹדְעִים אִם זֶה הָרַג זֶה בְּיוֹם זֶה בִּירוּשָׁלַיִם כְּמוֹ שֶׁאַתֶּם אוֹמְרִין אוֹ לֹא הֲרָגוֹ. וְאָנוּ מְעִידִים שֶׁאַתֶּם עַצְמְכֶם הֱיִיתֶם עִמָּנוּ בְּיוֹם זֶה בְּבָבֶל. הֲרֵי אֵלּוּ זוֹמְמִים וְנֶהֱרָגִין אוֹ מְשַׁלְּמִין. הוֹאִיל וְהָעֵדִים שֶׁהֱזִימוּם לֹא הִשְׁגִּיחוּ עַל עַצְמָהּ שֶׁל עֵדוּת כְּלָל אִם אֱמֶת הָיָה אוֹ שֶׁקֶר:
When does the above apply? When the witnesses were disqualified through hazamah? When, however, the testimony of two pairs of witnesses contradict each other, both testimonies are of no consequence, but neither of them receives punishment, because we do not know which pair is lying. What is the difference between testimony which is contradicted and testimony which is disqualified through hazamah? A contradiction concerns the testimony itself. One pair states: "This is what took place," and the other pair states: "It never took place," or that conclusion was obvious from his statements. Hazamah, by contrast, focuses on the witnesses themselves. The witnesses who disqualify them do not know whether the event happened or not. What is implied? Witnesses come and say: "We saw so-and-so kill a person..." or "...lend money to so-and-so on this-and-this date in this-and-this place." After they testified and the testimony was investigated, two other witnesses came and said: "On that day, we were with you and with those people the entire day and those things never happened. He never killed him," or "...He never lent him." This is considered a contradiction. Similarly, if witnesses say: "How can you testify in this manner. Either the murderer - or the victim or the borrower or the lender - were with us on that day in another city," the testimony is considered to be contradicted. This is as if they said: "So-and-so did not kill him..." or "So-and-so did not lend him, for they were together with us and this thing did not happen." Similar principles apply in all analogous situations. If, however, the second pair of witnesses say: "We do not know if so-and-so killed so-and-so on this day in Jerusalem as you say or not. We are, however, testifying that you yourselves were with us in Babylon on that date," the first pair of witnesses are considered as zomeimim and they are executed or required to make financial restitution. The rationale is that the witnesses who disqualified them did not concern themselves with the testimony itself whether it was true or false, but with the presence of the witnesses in the place mentioned.