כָּל נָבִיא שֶׁיַּעֲמֹד לָנוּ וְיֹאמַר שֶׁה' שְׁלָחוֹ אֵינוֹ צָרִיךְ לַעֲשׂוֹת אוֹת כְּאֶחָד מֵאוֹתוֹת משֶׁה רַבֵּנוּ אוֹ כְּאוֹתוֹת אֵלִיָּהוּ וֶאֱלִישָׁע שֶׁיֵּשׁ בָּהֶם שִׁנּוּי מִנְהָגוֹ שֶׁל עוֹלָם. אֶלָּא הָאוֹת שֶׁלּוֹ שֶׁיֹּאמַר דְּבָרִים הָעֲתִידִים לִהְיוֹת בָּעוֹלָם וְיֵאָמְנוּ דְּבָרָיו שֶׁנֶּאֱמַר (דברים יח כא) "וְכִי תֹאמַר בִּלְבָבֶךָ אֵיכָה נֵדַע אֶת הַדָּבָר" וְגוֹ'. לְפִיכָךְ כְּשֶׁיָּבוֹא אָדָם הָרָאוּי לִנְבוּאָה בְּמַלְאֲכוֹת הַשֵּׁם וְלֹא יָבוֹא לְהוֹסִיף וְלֹא לִגְרֹעַ אֶלָּא לַעֲבֹד אֶת ה' בְּמִצְוֹת הַתּוֹרָה אֵין אוֹמְרִין לוֹ קְרַע לָנוּ הַיָּם אוֹ הַחֲיֵה מֵת וְכַיּוֹצֵא בְּאֵלּוּ וְאַחַר כָּךְ נַאֲמִין בְּךָ. אֶלָּא אוֹמְרִים לוֹ אִם נָבִיא אַתָּה אֱמֹר דְּבָרִים הָעֲתִידִים לִהְיוֹת וְהוּא אוֹמֵר וְאָנוּ מְחַכִּים לִרְאוֹת הֲיָבוֹאוּ דְּבָרָיו אִם לֹא יָבוֹאוּ. וַאֲפִלּוּ נָפַל דָּבָר קָטָן בְּיָדוּעַ שֶׁהוּא נְבִיא שֶׁקֶר. וְאִם בָּאוּ דְּבָרָיו כֻּלָּן יִהְיֶה בְּעֵינֵינוּ נֶאֱמָן:
Any prophet that will arise for us and say that G-d sent him is not obliged to perform a sign that involves a change in the natural order like the signs of Moshe, our teacher, or the signs of Eliyahu and Elisha. His sign is rather to tell us things that will happen in the future in the world, and his words are verified [by the correctness of his prediction], as it states (Deuteronomy 18:21), "And if you will say in your heart, 'How will we know this matter, etc'". Therefore, when there comes a person that is fit for prophecy through his acts of G-d and he does not come to add or subtract (from the Torah), but rather to serve G-d through the commandments of the Torah, we do not say to him, "Split the sea," or "Revive a dead person," or what is similar to these [things]. Rather, we say to him, "If you are a prophet, tell us things that will happen in the future," and he tells us, and we wait to see whether his words come [true] or whether they don't come [true]. And even if a small [detail doesn't happen], it is known that he is a false prophet. But if all of his words come [true], he becomes trustworthy in our eyes.
