《明史·列传·卷一百四十》
二月，大清兵胜利返回北方，给事中李希沆说： 皇上登位以来，北方军队三次进逼京城。
二月，大清兵北旋，给事中李希沆言： 圣明御极以来，北兵三至。
On February, The great Qing army successfully return to north, serving in the Ministry of Rites Li Xihang said: Since the emperor acceded to the throne, north armies threatened capital for three times.