Zechariah 13:4 Midrash

וְהָיָ֣ה ׀ בַּיּ֣וֹם הַה֗וּא יֵבֹ֧שׁוּ הַנְּבִיאִ֛ים אִ֥ישׁ מֵחֶזְיֹנ֖וֹ בְּהִנָּֽבְאֹת֑וֹ וְלֹ֧א יִלְבְּשׁ֛וּ אַדֶּ֥רֶת שֵׂעָ֖ר לְמַ֥עַן כַּחֵֽשׁ׃

And it shall come to pass in that day, that the prophets shall be brought to shame every one through his vision, when he prophesieth; neither shall they wear a hairy mantle to deceive;