《后汉书·本纪·光武帝纪上》
这时恰好了望敌人的骑兵回来，说大量的敌人将到城北，军马队列数百里，看不到队尾。
会候骑还，言大兵且至城北，军陈数百里，不见其后。
At that time, it happened that the scouts sent to observe the enemy's cavalry returned, saying that a large number of enemies were approaching the north of the city, their military horses and chariots in a queue of hundreds of miles, with no end in sight.