《旧唐书·列传·卷一百一十九》
不久授郑注通王府司马，充任右神策判官，朝廷内外人皆惊叹。
寻授注通王府司马，充右神策判官，中外骇叹。
Shortly after, he was granted an official post as Magistrate of Zheng City, Right Official of the Shence Army, which made both officials inside and outside the court amazed.