《资治通鉴·汉纪·汉纪四十八》
段因而和张恺分别由东山和西山纵兵夹击，大破羌众，追击到射虎谷的上下门和穷山深谷之中，势如破竹，斩杀叛羌酉长以下共一万九千余人。
颎因与恺等夹东、西山，纵兵奋击，破之，追至谷上下门，穷山深谷之中，处处破之，斩其渠帅以下万九千级。
Duan and Zhang Kai led their troops to attack from Dongshan and Xishan, respectively, and defeated the Qiang people. They chased them to the upper and lower gates of Shehu Valley and secluded valleys. Their momentum was irresistible, and they killed 19,000 people from Xiachang and below.