《新唐书·列传·卷六十三》
敌军没料到唐军突然来了，因此大败，跳到山崖下摔死的有十分之八。
虏不虞军至，因大溃，投崖谷死者十八。
The enemy army didn't predict that the Tang army would arrive, and thus suffered a severe defeat, with more than eighty per cent of their soldiers falling to their deaths off the cliff.