Esther 6:9, 11

and let the robe and the horse be handed over to one of the king’s most noble princes and let them array the man whom the king desires to honor and lead him on horseback through the city square, and proclaim before him, ‘Thus it shall be done to the man whom the king desires to honor.’ ”

So Haman took the robe and the horse, and arrayed Mordecai, and led him on horseback through the city square, and proclaimed before him, “Thus it shall be done to the man whom the king desires to honor.”