《资治通鉴·唐纪·唐纪六十》
九月，丙寅，侍御史李款在紫宸殿弹劾郑注说： 郑注在宫中交结宦官，在南衙交结百官，两地往来奔走，收取贿赂，窥测动向，窃取大权，人们都敢怒而不敢言。
九月，丙寅，侍御史李款阁内奏弹注： 内通敕使，外连朝士，两地往来，卜射财贿，昼伏夜动，干窃化权，人不敢言，道路以目。
In September, on the day of bingyin, Supervising Censor Li Kuan accused Zheng Zhu in the Zichen Hall, saying: “Zheng Zhu colludes with eunuchs in the palace and with officials in the southern government buildings. He travels back and forth between the two places, taking bribes and spying on trends to usurp great authority, which causes people to fear him but not dare to speak out.”