《新唐书·列传·卷一百四十七》
蛮兵听说凤翔、山南的兵马将到，于是在毗桥迎战，不胜。改去沱江，遭到伏军的袭击，又败。
蛮闻凤翔、山南军且来，乃迎战毘桥，不胜，趋沱江，为伏士所击，又败。
The barbarian army heard that troops from Fengxiang and Shannan was coming. Therefore, they intercepted them at Piao Bridge but were defeated. They retreated to Tuo River but were attacked by the ambush troops again and were defeated.