《晋书·志·第十八章》
此前，郭景纯占筮延陵蛔鼠，得到《临》之《益》，说： 以后将还有妖树生，像是祥瑞其实不是，是辛毒的树木。如出现此事，东西数百里内必定有叛逆作乱的人。 
先是，郭景纯筮延陵蝘鼠，遇《临》之《益》，曰： 后当复有妖树生，若瑞而非，辛螫之木也，傥有此，东西数百里必有作逆者。 
Before this, Guo Jingchun used divination to foretell Yanling's intestinal worm and got the "benefit" of "Lin", which said: In the future, there will be more enchanted trees, which seem to be auspicious but are not, and are sinister trees. If this happens, there will definitely be rebellious people in the east and west for hundreds of miles.