וַיִּגְּשׁ֨וּ אֶל־זְרֻבָּבֶ֜ל וְאֶל־רָאשֵׁ֣י הָֽאָב֗וֹת וַיֹּאמְר֤וּ לָהֶם֙ נִבְנֶ֣ה עִמָּכֶ֔ם כִּ֣י כָכֶ֔ם נִדְר֖וֹשׁ לֵֽאלֹהֵיכֶ֑ם ולא [וְל֣וֹ ׀] אֲנַ֣חְנוּ זֹבְחִ֗ים מִימֵי֙ אֵסַ֤ר חַדֹּן֙ מֶ֣לֶךְ אַשּׁ֔וּר הַמַּעֲלֶ֥ה אֹתָ֖נוּ פֹּֽה׃
then they drew near to Zerubbabel, and to the heads of fathers’houses, and said unto them: ‘Let us build with you; for we seek your God, as ye do; and we do sacrifice unto Him since the days of Esarhaddon king of Assyria, who brought us up hither.’
Read halakhic rulings (Jewish law) on Ezra 4:2: and classical halakhic sources.