《资治通鉴·唐纪·唐纪三十四》
南诏乘唐朝大乱之机攻陷了越郡的会同军，占据了清溪关，寻传蛮和骠国都归降了南诏。
南诏乘乱陷越巂会同军，据清溪关；寻传、骠国皆降之。
Nanzhao took advantage of the chaos within the Tang Dynasty to seize control of the Huitong Army in Yue County, and took over the Qingxi Pass, after which the Xun Chuan barbarians and Pyu all surrendered to Nanzhao.