《资治通鉴·汉纪·汉纪五十五》
张说： 曹操亲率精兵前去袭击，必能攻破淳于琼等，他们一败，辎重被毁，则大势已去，请先去救援淳于琼。 
郃曰： 曹公精兵往，必破琼等，琼等破，则事去矣，请先往救之。 
Zhang He said: Cao Cao personally led the elite troops to attack, and he will definitely be able to defeat Chunyu Qiong and the others. Once they are defeated and their supplies are destroyed, the situation will be over. Please go and rescue Chunyu Qiong first. 