Esther 2:21-22

In those days, as Mordecai was sitting at the king’s gate, Bigthan and Teresh, two of the king’s eunuchs, who guarded the threshold, became angry and sought to lay hands on King Ahasuerus. And this came to the knowledge of Mordecai, and he told it to Queen Esther, and Esther told the king in the name of Mordecai.