וּזְהִירִ֥ין הֱו֛וֹ שָׁל֖וּ לְמֶעְבַּ֣ד עַל־דְּנָ֑ה לְמָה֙ יִשְׂגֵּ֣א חֲבָלָ֔א לְהַנְזָקַ֖ת מַלְכִֽין׃ (ס)
And take heed that ye be not slack herein; why should damage grow to the hurt of the kings?’
Read midrashic interpretation of Ezra 4:22: and classical rabbinic exegesis.