וַיֹּ֤אמֶר הָמָן֙ לַמֶּ֣לֶךְ אֲחַשְׁוֵר֔וֹשׁ יֶשְׁנ֣וֹ עַם־אֶחָ֗ד מְפֻזָּ֤ר וּמְפֹרָד֙ בֵּ֣ין הָֽעַמִּ֔ים בְּכֹ֖ל מְדִינ֣וֹת מַלְכוּתֶ֑ךָ וְדָתֵיהֶ֞ם שֹׁנ֣וֹת מִכָּל־עָ֗ם וְאֶת־דָּתֵ֤י הַמֶּ֙לֶךְ֙ אֵינָ֣ם עֹשִׂ֔ים וְלַמֶּ֥לֶךְ אֵין־שֹׁוֶ֖ה לְהַנִּיחָֽם׃
And Haman said unto king Ahasuerus: ‘There is a certain people scattered abroad and dispersed among the peoples in all the provinces of thy kingdom; and their laws are diverse from those of every people; neither keep they the king’s laws; therefore it profiteth not the king to suffer them.
Read halakhic rulings (Jewish law) on Esther 3:8 from the Mishneh Torah and classical halakhic sources, free online.