《资治通鉴·唐纪·唐纪二》
现在东海公徐世在黎阳，襄阳公在罗口，黄河以南的兵马屈指可数，怎么能长期这样下去？ 
今东海公在黎阳，襄阳公在罗口，河南兵马，屈指可计，岂得久如此也！ 
“Now that the Duke of Donghai, Xu Shi, is on the north bank of the River Li, and the Duke of Xiangyang is at the north bank of the Yellow River, how can we sustain fighting such small numbers of troops for long?”