《资治通鉴·唐纪·唐纪六十》
庚申，李德裕将以上情况奏报朝廷，并且说： 我打算派遣三千没有开化的羌族人，焚烧十三桥，随后出兵直捣吐蕃的腹心之地，洗刷安史之乱以来吐蕃侵占我边防疆域的耻辱，这是西川前节度使韦皋终身努力而未能达到的目标。 
庚申，具奏其状，且言 欲遣生羌三千，烧十三桥，捣西戎腹心，可洗久耻，是韦皋没身恨不能致者也！ 
On gengshen day, Li Deyu reported the above to the imperial court, stating: I plan to dispatch 3,000 uncivilized Qiang people to burn down the thirteen bridges, and then dispatch troops to directly attack the heartland of Tubo and expunge the disgrace of Tubo invading our border territories since the An-Shi Rebellion, a goal that the former Jiedushi of Xichuan, Wei Gao, had been dedicated to accomplishing his entire life but had been unable to achieve.