《旧五代史·后晋·高祖纪一》
等到明宗进入汴城，庄宗也亲自率领军队到达离汴城五里路的西北部，庄宗登上高城叹息说： 我不能成就大事了！ 
及明宗入汴，庄宗亲统师亦至城之西北五里，登高叹曰： 吾不济矣！ 
When Mingzong entered Biancheng, Zhuangzong also personally led the army to the northwest of Biancheng, five li away. Zhuangzong climbed up a tall building, sighed, and said, "I cannot achieve great things!"