《资治通鉴·汉纪·汉纪五十七》
当时曹操的部队中已发生疾疫。两军初次交战，曹军失利，退到长江北岸。
时操军众已有疾疫，初一交战，操军不利，引次江北。
At that time, a plague had broken out in Cao Cao's army. In the first battle, Cao's army was defeated and retreated to the north bank of the Yangtze River.