《新五代史·世家·后蜀世家第四》
军头向韬抓获后蜀的降兵，降兵说： 来苏有条小路，出剑门南清强店，和大路会合。 
军头向韬得蜀降卒言： 来苏小路，出剑门南清强店，与大路合。 
Military leader Xiang Tao captures Later Shu's surrendered soldiers, who say, "There is a path in Suzhou, which leads to Daqingqiao in Jianmen, and connects to the main road."