《北齐书·本纪·卷一》
当初，魏真君的侍从文人上书，说上党有天子气，位居壶关大王山。
初，魏真君内学者奏言上党有天子气，云在壶关大王山。
Earlier, literary retainers from Emperor Weijun of Wei had written to say that in Shangdang there was an aura of an emperor who resided at King Mountain in Huguanguan.