Esther 4:9 (KJV)

And Mordecai told him of all that had happened unto him, and of the sum of the money that Haman had promised to pay to the king’s treasuries for the Jews, to destroy them.

Also he gave him the copy of the writing of the decree that was given at Shushan to destroy them, to shew it unto Esther, and to declare it unto her, and to charge her that she should go in unto the king, to make supplication unto him, and to make request before him for her people.

And Hatach came and told Esther the words of Mordecai.

Again Esther spake unto Hatach, and gave him commandment unto Mordecai;

All the king’s servants, and the people of the king’s provinces, do know, that whosoever, whether man or woman, shall come unto the king into the inner court, who is not called, there is one law of his to put him to death, except such to whom the king shall hold out the golden sceptre, that he may live: but I have not been called to come in unto the king these thirty days.