《太平广记·卷二百八十·梦五（鬼》
城西北方向数里，又有一座大城，外面有穿盔甲的兵士数百，持戈操戟，打着旌旗，站在门的两侧。看那防卫森严的样子，象皇帝居住的地方。
城之西北数里，又一城。外有被甲者数百，罗立门之左右，执戈戟，列幡帜，环卫甚严，若王者居。
Several miles to the northwest of the city, there was another great city, with hundreds of armored soldiers standing on both sides of the gate, holding lances and spears, and flying flags. Judging from the strict guarding, it seemed like the residence of an emperor.