《新唐书·列传·卷一百三十五》
田悦沉吟了好久说 ：当初是与冀王约好相随的。但现在我全军胁持我说： 魏州才受侵掠，供应短缺。 
悦良久曰： 始约从王，今举军持悦曰： 魏比困侵掠，供拟屈竭。 
Tian Yue pondered for a long time and said: At first, I promised to follow the King of Ji. But now the whole army is coercing me, saying: Weizhou has just been invaded and supplies are short. 