《资治通鉴·唐纪·唐纪十四》
太宗想要听从这个意见，惟独长孙无忌认为： 天子亲自征战，与一般将领统兵不同，不可以冒着危险侥幸取胜。
上将从之，独长孙无忌以为： 天子亲征，异于诸将，不可乘危徼幸。
Taizong wanted to follow this advice, but only Zhangsun Wuji said: When the Emperor fights in person, it is different from when ordinary generals command troops. The victory should not be obtained by taking chances and risking danger.