All the royal officials at the king's gate knelt down and paid honor to Haman, for the king had commanded this concerning him. But Mordecai would not kneel down or pay him honor.
Then the royal officials at the king's gate asked Mordecai, "Why do you disobey the king's command?"1
References for Esther 3:3
Day after day they spoke to him but he refused to comply.2 Therefore they told Haman about it to see whether Mordecai's behavior would be tolerated, for he had told them he was a Jew.
References for Esther 3:4