《资治通鉴·后唐纪·后唐纪三》
后唐帝打算亲自率军去讨伐邺都，宰相、枢密使都说京师是国家的根本，皇帝的车驾不能轻易出动，后唐帝说： 诸位将领中没有人可以派出去了。 
帝欲自征鄴都，宰相、枢密使皆言京师根本，车驾不可轻动，帝曰： 诸将无可使者。 
The Tang emperor planned to personally lead troops to pacify Yedu. The prime minister and privy envoy both said that the capital was the foundation of the state and the emperor's carriage should not be easily moved. The Tang emperor said: “None of the generals can be sent out.”