《明史·列传·卷一百五十八》
良玉杀了他派来的使者，立即带领民屏、邦屏的儿子翼明、拱明一起出战，逆流而上，渡过渝城，乘敌不备，到达重庆的南坪关，扼住贼兵的归路。
良玉斩其使，即发兵率民屏及邦屏子翼明、拱明溯流西上，度渝城，奄至重庆南坪关，扼贼归路。
Liangyu killed the messenger that he had sent, and immediately led Min-ping and Bang-ping's sons Yiming and Gongming into battle. They traveled upstream, crossed the Yu River, and took advantage of the enemy's lack of preparedness to reach Nanping Pass in Chongqing, where they cut off the path of the rebel soldiers.