Ban Yong, with more than six thousand cavalry from the prefectures of Dunhuang, Zhangye (modern Gansu), and Jiujuan (modern Suzhou), as well as soldiers from Shanshan, Kashgar and Turpan, in the following year, 125, defeats the King of Jimasa and beheads both the king and a Xiongnu envoy, sending their heads to the capital.
He also captures more than eight thousand prisoners and fifty thousand horses and cattle.
Near the end of the reign of Emperor An, Ban Yong presents a report to him on the countries to the west of China, covering all the territory to India as well as to the Roman Empire.
This report forms the basis, with a few later additions, of the 'Chronicle of the Western Regions' in the Hou Hanshu.