Esther 4:7 (ESV)

7 and Mordecai told him all that had happened to him, and the exact sum of money that Haman had promised to pay into the king’s treasuries for the destruction of the Jews.

Mordecai told Hathach all that had happened to him, how he had been the cause of Haman’s anger and the plot against the Jews. He also related the details of Haman’s bribery.