《魏书·列传·卷二十三》
太宗再次召集各位儒生和术士询问遣事说： 现在天下没有统一，四方如高山峙立，灾祸的应验，将在哪个国家?
太宗复召诸儒术士问之曰： 今天下未一，四方岳峙，灾咎之应，将在何国？
Emperor Taizong summoned Confucian scholars and magicians and asked, “The empire has yet been unified, the four directions are like mountains. In what state will the fulfillment of the calamity occur?” 