《资治通鉴·唐纪·唐纪六》
冯慧亮等人坚壁不战，李孝恭派奇兵切断了敌军的粮食运输线，冯慧亮等军缺乏军粮，半夜，派兵逼近李孝恭的军营，李孝恭坚持不出战。
慧亮等坚壁不战，孝恭遣奇兵绝其粮道，慧亮等军乏食，夜，遣兵薄孝恭营，孝恭安卧不动。
Feng Huiliang and others fought behind closed doors. Li Xiaogong sent a surprise soldier to cut off the enemy's food transportation line. Feng Huiliang and others' army lacked military rations. In the middle of the night, they sent troops to approach Li Xiaogong's barracks. Li Xiaogong insisted not to fight.