《明史·列传·卷十二》
第二年，扩廓复攻雁门，太祖命诸将严密防备，从此之后明军很少出塞。
明年，扩廓复攻雁门，命诸将严为之备，自是明兵希出塞矣。
In the second year, Kuokuo invaded Yanmen again. Taizu ordered all the generals to defend strictly, and from then on, the Ming army seldom went beyond the Great Wall.