《新唐书·列传·卷二十九》
张行成说 ：国君把天下当作自己的家庭，不应在东边西边之间划分界线，您今天是向天下臣民表明了心胸狭窄。 
行成曰： 天子四海为家，不容以东西为限，是示人以隘矣。 
Zhang Xingcheng said: A monarch should regard the world as his own family and should not make distinctions between the east and the west. By your words today, Your Majesty has revealed your narrow-mindedness to your subjects.