《旧唐书·列传·卷五十二》
考取进士，多次转为通事舍人，狄仁杰非常器重他。
举进士，累转通事舍人，纳言狄仁杰甚重之。
He passed the imperial examinations and was transferred several times to the office of interpreter and messenger. Di Renjie respected him greatly.