《新唐书·列传·卷一百四十一》
三十天吐蕃兵都无所获。朔方将史敬奉派奇兵绕到吐蕃兵背面，大胜。解围。
朔方将史敬奉以奇兵绕出虏背，大破之，解围去。
After 30 days, Tubo soldiers had achieved nothing. Shi Jingfeng, a general from Shuofang, sent a surprise attack to the back of Tubo, and achieved a great victory. The siege was lifted.