Sohrab Presses the Horses Down

From B8.6, Sohrab Chooses His Charger. It illustrates B8.6.7–13:

B8.6.7
From mountain, hill, and plain the herdsmen came,And drove all horse herds in like smoke and flame.
B8.6.8
They filled the city, brought from every side,That Sohrab choose a steed for war to ride.
B8.6.9
When one appeared thick-necked and strong of frame,Sohrab stepped forth to put its strength to shame.
B8.6.10
He cast the leather kamand round its neck,Then set his hand its gathered strength to check.
B8.6.11
He pressed its back until its belly layUpon the earth; so did its strength give way.
B8.6.12
Thus one by one he tried the strongest breed,And many broke beneath his mighty deed.
B8.6.13
None proved a steed his battle weight could take;And grief began within the youth to wake.