《三国志·吴书·周瑜鲁肃吕蒙传》
敌人连夜逃走，大军开到木柴阻塞的山道时，骑兵都弃马步行逃走。
敌夜遁去，行遇柴道，骑皆舍马步走。
The enemy fled throughout the night. When the army arrived at the mountain pass blocked with firewood, the cavalry abandoned their horses and fled on foot.