Cumque propinquantes ad coniectum venere telorum, oppositis scutis, Persae pedites sagittas tormentis excussas e muris aegrius evitantes laxaverant aciem, nullo paene iaculi genere in vanum cadente; etiam cataphracti hebetati et cedentes animos auxere nostrorum.
Translation :
But when their approach brought them within bowshot, though holding their shields before them the Persian infantry found it hard to avoid the arrows shot from the walls by the artillery, and took open order, and almost no kind of dart failed to find its mark; even the mail-clad horsemen were checked and gave ground, and thus increased the courage of our men.
Edition :
Ammianus Marcellinus. With An English Translation. John C. Rolfe, Ph.D., Litt.D. Cambridge. Cambridge, Mass., Harvard University Press; London, William Heinemann, Ltd. 1935-1940.