《隋书·帝纪·卷四》
高丽竟又抢夺他人献给天子的财宝，阻拦隔绝人们的往来，肆虐危及无辜，使那些诚心归顺的人遭祸害。
又青丘之表，咸修职贡，碧海之滨，同禀正朔，遂复夺攘琛 ，遏绝往来，虐及弗辜，诚而遇祸。
Goryeo even robbed the treasures offered to the emperor by others, prevented the passage of people, ravaged and endangered the innocent, and caused misfortune to those who sincerely surrendered.