וַיָּבֹ֕אוּ כֹּ֖ל זִקְנֵ֣י יִשְׂרָאֵ֑ל וַיִּשְׂא֥וּ הַלְוִיִּ֖ם אֶת־הָאָרֽוֹן׃
And all the elders of Israel came, and the Levites took up the ark.
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.