Esther 5:14
14 Then his wife Zeresh and all his friends said to him, “Let a tgallows1 fifty cubits2 high be made, and in the morning tell the king to have Mordecai hanged upon it. Then go joyfully with the king to the feast.” This idea pleased Haman, and he had the gallows made.
Esther 6:4
4 And the king said, “Who is in the court?” Now Haman had just entered the outer court of the king’s palace to speak to the king about having Mordecai hanged on the wgallows1 that he had prepared for him.