וּבְכָל־מְדִינָ֣ה וּמְדִינָ֗ה מְקוֹם֙ אֲשֶׁ֨ר דְּבַר־הַמֶּ֤לֶךְ וְדָתוֹ֙ מַגִּ֔יעַ אֵ֤בֶל גָּדוֹל֙ לַיְּהוּדִ֔ים וְצ֥וֹם וּבְכִ֖י וּמִסְפֵּ֑ד שַׂ֣ק וָאֵ֔פֶר יֻצַּ֖ע לָֽרַבִּֽים׃
And in every province, whithersoever the king’s commandment and his decree came, there was great mourning among the Jews, and fasting, and weeping, and wailing; and many lay in sackcloth and ashes.
Find Talmudic references to Esther 4:3: , passages from the Talmud Bavli and Yerushalmi.