《旧五代史·后唐·列传八》
今天逼近敌营，已让他们知道我们的虚实，这样胜负就难以确定了。 
今压贼营，令彼见我虚实，则胜负未可必也。 
Today, we approached the enemy camp and let them know our strengths and weaknesses. In this way, it would be difficult to determine the winner.