Esther 7:6

Then the king removed his signet ring from his hand and gave it to Haman, the son of Hammedatha the Agagite, the adversary of the Jews.

On that day King Ahasuerus gave the house of Haman, the adversary of the Jews, to Queen Esther; and Mordecai came before the king, for Esther had told what he was to her.

But when it came before the king, he said by letter that his evil scheme, which he had devised against the Jews, should return on his own head and that he and his sons should be hanged on the gallows.