Histories

His reasons for leaving the asses, and the infirm among his soldiers, were the following: the asses, so that they would bray; the men, who were left because of their infirmity, he pretended were to guard the camp while he attacked the Scythians with the fit part of his army.

Giving this order to those who were left behind, and lighting campfires, Darius made all haste to reach the Ister. When the asses found themselves deserted by the multitude, they brayed the louder for it; and the Scythians heard them and assumed that the Persians were in the place.

But when it was day, the men left behind perceived that Darius had betrayed them, and they held out their hands to the Scythians and explained the circumstances; they, when they heard this, assembled their power in haste, the two divisions of their horde and the one division that was with the Sauromatae and Budini and Geloni, and made straight for the Ister in pursuit of the Persians.