《梦溪笔谈·权智》
其军刚与敌人相遇，还没有接战，他就立即下令击锣，士卒都停了下来；锣声再次响起，士卒都退却。
才遇敌，未接战，遽声钲，士卒皆止；再声，皆却。
As soon as his army met the enemy, he immediately ordered the gong to be struck before they could engage in battle, and the soldiers stopped. When the gong sounded again, the soldiers retreated.