《史记·三十世家·楚世家》
二年，楚怀王逃跑了，秦国发觉后，封锁了通往楚国的道路，怀王害怕，就从小路到赵国借路回楚。
二年，楚怀王亡逃归，秦觉之，遮楚道，怀王恐，乃从间道走赵以求归。
In the second year, King Huai of Chu fled. When the State of Qin discovered this, they closed the passes leading to Chu State. King Huai was terrified, so he took a mountain path to the State of Zhao to borrow a path to return to Chu State.