תּלמוד אויף אסתר 2:22

R. Meir says: Esther was composed under the inspiration of the holy spirit, as it says, “And the thing became known to Mordecai” (2:22). Yose b. Durmaskit said: Esther was composed under the inspiration of the holy spirit, as it says, “But on the spoil they laid not their hands” (9:10).

And servants with their master in order to perform a miracle for a righteous man, namely, Mordecai, as it is written, "And the matter was known to Mordecai etc" (Esther 2:22).

R. Elazar further said in the name of R. Hanina: Whoever reports a saying in the name of the one who said it originally brings deliverance to the world, as it says, “And Esther told the king in the name of Mordecai” (Esther 2:22).