《旧五代史·后唐·列传四》
幕客魏琢、牙将申蒙，趁进来禀告公事之机，常常用奸谋游说李继韬，说 ：朝廷没人，终将被河南汴人吞并，只不过早晚的事罢了。 
有幕客魏琢、牙将申蒙者，因入奏公事，每摭阴事报继韬云： 朝廷无人，终为河南吞噬，止迟速间耳。 
The guest, Wei Zuo, and the general, Shen Meng, took advantage of the fact that they were entering to report official business, and often used treachery to persuade Li Ji Tao, saying that the imperial court had no one and would eventually be swallowed up by the people of Henan Bian.