《新五代史·列传·杂传第三十二》
如果修缮桥梁，必定停留几天，嘻王衍得以闭关做准备，那胜负就不能预知了。 
若修缮桥梁，必留数日，使衍得闭关为备，则胜负未可知也。 
If we repair the bridge, the army must stop for a few days. Wang Yan will have time to prepare to defend, so we cannot predict the outcome of the battle.