《资治通鉴·唐纪·唐纪七十六》
便派军队袭击许存，许存放弃万州城逃跑；许存的人马渐渐投归，在茅坝驻扎下来。
遣兵袭之，存弃城走；其众稍稍归之，屯于茅坝。
Then he sent troops to attack Xu Cun, Xu Cun abandoned Wanzhou City and escaped; Xu Cun's troops gradually returned, and they camped in Maoba.