Esther 8:11-14

In it the king granted the Jews who were in every city the right to assemble and to defend their lives; to destroy, to kill, and to annihilate any armed force that might attack them, their little children, and women; and to take the enemies’ goods as plunder, on one day in all the provinces of King Ahasuerus, the thirteenth [day] of the twelfth month (that is, the month of Adar). A copy of the edict was to be issued as a law in every province and as a proclamation to all peoples, so that the Jews would be ready on that day, to avenge themselves on their enemies. So the couriers, who were mounted on the royal relay horses, left quickly, urged on by the king’s command; and the decree was issued at the citadel in Susa [the capital].