《新五代史·列传·杂传第三十六》
自从他投奔契丹，多次引导契丹骚扰幽、蓟一带地方，掳掠那里的百姓，将中原的纺织技术全部教给契丹，契丹因此更加强盛。
自其奔契丹也，数引契丹攻掠幽、蓟之间，虏其人民，教契丹以中国织纴工作无不备，契丹由此益强。
Ever since he joined the Khitan, he repeatedly guided the Khitan to harass the areas of You and Ji, loot the people there, and teach the Khitan all the textile techniques of the Central Plains. As a result, the Khitan became even stronger.