《资治通鉴·唐纪·唐纪五十九》
自从元和末年以后，宦官日益骄横跋扈，皇帝废立都由他们掌握，权威远在皇帝之上，百官敢怒而不敢言。
春，三月，己卯，王智兴攻棣州，焚其三门。
Since the end of the Yuanhe era, the eunuchs became increasingly arrogant and domineering. The abdication and succession of the emperor were all in their hands, and their authority was far above the emperor's. All officials dared to be angry but did not dare to speak.