《资治通鉴·晋纪·晋纪二十六》
太子独自和数万弱兵留守京师，我害怕有不测之变出现在我们的心腹地区，后悔不及。
太子独与弱卒数万留守京师，臣惧有不虞之变生于腹心肘掖，不可悔也。
The prince is left alone with tens of thousands of weak soldiers to defend the capital. I'm afraid that there will be unexpected changes in our heartland, and it will be too late for regret.