《资治通鉴·唐纪·唐纪十一》
等到高昌改亡后，焉耆王到唐朝军队营地拜见侯君集，而且说焉耆三座城曾先被高昌夺去，君集禀报朝廷将三座城连同高昌所掠的焉耆百姓如数归还。
及高昌破，焉耆王诣军门谒见君集，且言焉耆三城先为高昌所夺，君集奏并高昌所掠焉耆民悉归之。
After Gaochang was conquered, the king of Yanqi went to the military camp of the Tang dynasty to pay homage to Hou Junji, and mentioned that three cities of Yanqi were taken by Gaochang before, Junji reported this to the court and the three cities were returned along with the people of Yanqi who were taken by Gaochang.