《三国志·魏书·文帝纪》
当初，文帝听说刘备大军东下，与孙权交战，围栅栏连接营寨七百多里，对群臣说： 刘备不通晓军事，哪里有用七百里的营寨来抵抗敌军的呢？ 在草木丛生、地势高旷或低洼潮湿的地方安营扎寨，必然被敌方所击败 ，这是用兵的大忌。
初，帝闻备兵东下，与权交战，树栅连营七百馀里，谓群臣曰： 备不晓兵，岂有七百里营可以拒敌者乎！ 苞原隰险阻而为军者为敌所禽 ，此兵忌也。
Initially, when Emperor Wen heard that Liu Bei’s army had crossed the westbound mountain and engaged in a battle with Sun Quan, with fences and barriers connecting their camps spreading over seven hundred li, he talked to his ministers: "Liu Bei is not familiar with military tactics. How could he possibly use a camp that stretches over 700 li to fend off the enemy? Setting up camp in areas covered with woods and grasses, on the mountains, on flat lands or swampy soil will lead to sure defeat. This is the cardinal rule of military affairs.