《后汉书·本纪·光武帝纪下》
秋七月，武陵蛮侵扰临沅，派谒者李嵩、中山太守马成讨伐，没有取胜，于是伏波将军马援率领四将军去讨伐。
秋七月，武陵蛮寇临沅，遣谒者李嵩、中山太守马成讨蛮，不克，于是伏波将军马援率四将军讨之。
In July of the autumn, the barbarians of Wuling harassed Linyuan. The emperor sent the Gentleman Usher Li Song and the Prefect of Zhongshan, Ma Cheng, to attack them, but they failed to gain the upper hand. So after enfeoffing Ma Yuan as General Fubo, the emperor sent him to attack them with four generals.