《资治通鉴·唐纪·唐纪五十八》
武宁节度副使王智兴率领军中精兵三千人讨伐幽州、成德，节度使崔群忌怕王智兴，奏请朝廷任命王智兴为节度使，否则就召入京城，授予其它官职，让他离开武宁。
武宁节度副使王智兴将军中精兵三千讨幽、镇，节度使崔群忌之，奏请即用智兴为节度使，不则召诣阙，除以他官。
Wang Zhixing, the Deputy Governor of Wuning, led 3,000 elite soldiers to attack Youzhou and Chengde. Governor Cui Qun was afraid of Wang Zhixing, so he petitioned the court to appoint Wang Zhixing as governor, or he would be summoned to the capital to be given another official position, so that he could leave Wuning.