《资治通鉴·秦纪·秦纪二》
刘邦据此推测待到骊山时人已经都跑光了，于是便在行至丰乡西面的泽中亭后，停下来休息饮酒，到了晚上即释放所送的夫役们说： 你们都走吧，我也从此逃命去了！ 
自度比至皆亡之，到丰西泽中亭，止饮，夜，乃解纵所送徒曰： 公等皆去，吾亦从此逝矣！ 
Liu Bang guessed from this that when he arrived at Lishan, everyone would have run away, so he stopped to rest and drink in the pavilion in the swamp west of Fengxiang, and when night fell, he released the laborers he was sending and said: You all go. , I also escaped from here!