《贞观政要·卷二·论任贤》
这次战争，唐兵斩杀敌人万余人，杀死颉利可汗的夫人一一隋朝的义成公主，俘虏男女十多万人，灭掉了颉利可汗的国家。颉利可汗余下的其他部落，全部投降。
斩万余级，杀其妻隋义成公主，俘男女十余万，斥土界自阴山至于大漠，遂灭其国。寻获颉利可汗于别部落，余众悉降。
In this battle, the Tang army killed over ten thousand enemy soldiers, including Jieli Khan’s wife, the Princess Yicheng of the Sui Dynasty, captured over a hundred thousand men, women and children, and destroyed Jieli Khan’s state. The other tribes under Jieli Khan’s control all surrendered.