《新五代史·列传·唐臣传第十三》
唐庄宗拿不定主意，询问各将领，而只有符存审认为应当救，说： 希望借给我骑兵五千人就够了！ 
庄宗疑，以问诸将，而存审独以为当救，曰： 愿假臣骑兵五千足矣！ 
Tang Zhuangzong could not make up his mind. Then he asked the generals for advice. Only Fu Cunxian said that he should rescue Youzhou and said, "I hope that he can borrow 5,000 cavalrymen. That should be enough!"