《资治通鉴·后梁纪·后梁纪四》
王檀与昭义节度使留后贺一起攻打澶州，把澶州攻克，并抓获了晋王任命的澶州刺史李岩，将他押送到东都。
王檀与昭义留后贺瑰攻澶州，拔之，执李岩，送东都。
Wang Tan and the Inspector of Zhaoyi, He Ji, attacked Chenzhou together, taking it and capturing the Prince of Jin’s prefect of Chenzhou, Li Yan, and escorting him to the Eastern Capital.