Esther 8
NET
10 Mordecai wrote in the name of King Ahasuerus and sealed it with the king’s signet ring. He then sent letters by couriers, who rode royal horses that were very swift.
Darby
10 And he wrote in the name of king Ahasuerus, and sealed [it] with the king's ring, and sent letters by couriers on horseback riding on coursers, horses of blood reared in the breeding studs:
KJV
10 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: