《隋书·列传·卷二十七》
碰上王世充称帝，王世充很礼遇、重视他，署他为尚书右仆射。
会王世充僭号，甚礼重之，署尚书右仆射。
Wang Shi Chong met him head on, and treated him with much respect and value, appointing him as the Right Assistant Minister of the Imperial Secretariat.