Esther 8:7-8

Then King Ahasuerus said to Queen Esther and to Mordecai the Jew, “Behold, I have given Esther the house of Haman, and they have hanged him on the gallows, because he intended to lay hands on the Jews. But you may write as you please with regard to the Jews, in the name of the king, and seal it with the king’s ring, for an edict written in the name of the king and sealed with the king’s ring cannot be revoked.”