כִּֽי־הִכְנִ֤יעַ יְהוָה֙ אֶת־יְהוּדָ֔ה בַּעֲב֖וּר אָחָ֣ז מֶֽלֶךְ־יִשְׂרָאֵ֑ל כִּ֤י הִפְרִ֙יעַ֙ בִּֽיהוּדָ֔ה וּמָע֥וֹל מַ֖עַל בַּיהוָֽה׃
For the LORD brought Judah low because of Ahaz king of Israel; for he had cast away restraint in Judah, and acted treacherously against the LORD.
Mishnah Megillah
If one reads the Megillah out of order, he has not fulfilled his obligation. If he reads it by heart, if he reads it in a translation [targum], or in any other language, he has not fulfilled his obligation. But they may read it to those who do not understand Hebrew in a language other than Hebrew. One who doesn’t understand Hebrew who heard it in Assyrian [Hebrew], has fulfilled his obligation.