And he wrote in the king Ahasuerus' name, and sealed it with the
king's ring, and sent letters by posts on horseback, and riders
on mules, camels, and young dromedaries: . . . .
So the posts that rode upon mules and camels went out, being
hastened and pressed on by the king's commandment. And the
decrees was given at Shushan the palace.
Quotes, by Bible
, Source: Esther (ch. VIII, v. 10 & 14)