《金史·列传·卷三》
诸将都说 ：吴瞞凭仗地形险要，而并不善于在野外作战，我军如果退到平凉，他必定舍弃险要之地而到平原来，这样就可以打败他了。 
诸将皆曰： 吴璘恃险，不善野战，我退军平凉，彼必弃险就平地，然后可图也。 
The generals all said: "Wu Man relies on the geographical advantage and is not good at fighting in the wilderness, if our army retreats to Pingliang, he will definitely abandon the geographical advantage and come to the plains, and then we can defeat them."