《明史·列传·卷一百六十》
四月十五日，官军进入山中，在郭家坝与贼兵相遇，天正下着大雨，各位将领竭力作战，贼兵死伤不计其数。
四月望，入山，遇贼郭家坝，大雨。诸将力战，贼死伤无算，食尽引还。
On the fifteenth of April, the official army entered the mountains, and in Guojiaba, they met the rebels. It was raining heavily, the generals fought fiercely, and countless rebels were killed or wounded.