《新唐书·列传·卷一百三十五》
及至刘晏被赐死、刘文喜被杀，各藩帅都有戒心，又传说皇帝将东行封泰山，李勉乃在汴州固城筑工事；李正己则率兵一万人屯扎曹州，同时派人劝说田悦同时作乱，田悦就与梁崇义联结，相约互为援应。
及刘晏死，籓帅益惧，又传言帝且东封泰山，李勉遂城汴州；而李正己惧，率兵万人屯曹州，乃遣人说悦同叛。
When Liu Yan was sentenced to death and Liu Wenxi was killed, the various Fan Shuai were wary, and it was rumored that the emperor would go east to enshrine Mount Tai, Li Mian built fortifications in Bianzhou Gucheng; Li Zhengji led 10,000 troops to Caozhou Station In the meantime, he sent someone to persuade Tian Yue to rebel at the same time, Tian Yue then joined forces with Liang Chongyi, and agreed to help each other.