《资治通鉴·唐纪·唐纪六十》
不料此行未能把他诛杀，我已无法安抚西川士卒，实现自己的诺言，希望陛下把他杀掉。 
诛之不遂，无以慰蜀士之心，愿陛下诛之。 
Unexpectedly, I couldn’t kill him in that trip. I have no way to comfort my soldiers of Xichuan, and I can't fulfill my promise. I hope Your Majesty will kill him.