《晋书·志·第二章》
大凡将被屠城的气，有的呈赤色形如飞鸟，有的是赤色之气形如破败之车，还有的呈赤黑色、气似狸皮之斑点，有的城池之中云气聚集如楼，溢出现出现在城外；营房之上有聚云像是众多人头，呈赤色，这些城池营垒都可屠杀。
凡屠城之气，或赤如飞鸟，或赤气如败车，或有赤黑气如狸皮斑，或城中气聚如楼，出见于外；营上有云如众人头，赤色，其城营皆可屠。
Generally, the qi of a city that will be conquered is red and shaped like a flying bird, or it is red and like a broken carriage, or it is red-black and spotted like the fur of a raccoon, or clouds gather above the city and spread out and appear outside of the city; clouds gather above military camp like many human heads and is red, all of these cities and camps can be conquered.