《明史·列传·卷三十》
三十年，平羌将军齐让征讨西南夷族无功，太祖命宋忠为参将，随将军杨文前往征讨。
三十年，平羌将军齐让征西南夷无功，以忠为参将，从将军杨文讨之。
Thirty years ago, Qi Rang, the general of Pingqiang, conquered the southwestern barbarians without success. Taizu ordered Song Zhong to be a lieutenant, and followed General Yang Wen to conquer.