《旧唐书·列传·卷一百二十三》
陈夷行性情孤高，不随流俗，历来憎恶杨、李诸人的所作所为，每次在皇帝面前议政，他都在言语上冒犯杨嗣复，以至于来言去语相互冲突。
夷行介特，素恶其所为，每上前议政，语侵嗣复，遂至往复。
Chen Yihang's temperament was aloof and unconventional. He had always despised the actions of people like Yang and Li. Every time he discussed government affairs in front of the emperor, his words offended Yang Sifux, which led to mutual conflicts in speech.