《资治通鉴·唐纪·唐纪四十六》
李卞等人回朝，讲了李怀光骄横傲慢的情况，于是行在开始对宫门城关严加警戒，侍从皇上的官员都暗中置办行装，等待离开奉天。
李卞等还，言怀光骄慢之状，于是行在始严门禁，从臣皆密装以待。
Li Bian and the others returned to the court, and reported the arrogance of Li Huiguang. As a result, the imperial court began to strengthen the security of the gates and passes of the palace, and the officials assisting the emperor secretly prepared their luggage, waiting to leave Fengtian.