Esther 9:29-32

29So Queen Esther, the daughter of Abihail, and Mordecai the Jew wrote with full authority to confirm this second letter about Purim.

30Letters were sent to all the Jews in the hundred and twenty-seven provinces of the empire of Ahasuerus – words of true peace –

31to establish these days of Purim in their proper times, just as Mordecai the Jew and Queen Esther had established, and just as they had established both for themselves and their descendants, matters pertaining to fasting and lamentation.

32Esther’s command established these matters of Purim, and the matter was officially recorded.