《新五代史·列传·杂传第三十五》
李周派人驰马奔赴唐庄宗求救，请求每天行军一百里奔赴急难，唐庄宗笑着说： 李周替我坚守，担忧什么！ 
周遣人驰趋庄宗求救，请日行百里以赴急，庄宗笑曰： 周为我守，何忧！ 
Li Zhou dispatched a person to ride fast to Emperor Zhuangzong of Tang for help, requesting that he march a hundred li each day to rush to the emergency; Emperor Zhuangzong of Tang laughed and said: Li Zhou is holding out for me, what is there to worry about! 