《新唐书·列传·卷八十二》
李希烈攻伐果断，屠杀残忍，占据富饶的蔡、许等州，又加上在邓州、襄城抢掠的财物，向东进犯就会截断我方的粮草运输通道，向北攻打就震动京都，这就是我说的形势危急。代、朔？
希烈果于奔噬，忍于伤残，据蔡、许富全之地，而益以邓、襄虏获之实，东寇则饟道阻，北窥则都邑震，此谓急也。
Li Xilie is resolute in his attacks and cruel in his massacres; he occupies the wealthy prefectures of Cai and Xu, and in addition to occupying the wealth he has plundered in Dengzhou and Xiangcheng, if he advances east, he will cut off our grain transport routes; if he attacks north, he will shake the capital; this is what I mean when I say the situation is perilous. In Dai, Shuo?