《明史·列传·卷一百三十五》
牛尾砦形势尤其险恶，官兵分三路夹攻，放火烧毁栅栏，杀死敌匪头子合儿结父子，河西也平定了。
牛尾砦尤险恶，将士三路夹攻，火其栅，斩酋合儿结父子。河西亦平。
The Niuwei Fort was especially dangerous. The official soldiers attacked from three routes, burning the fence on fire, killing the heads of the enemy bandits He Erjie and his son, and the west of the river was also stabilized.