《魏书·帝纪·卷十》
十一月癸酉初一，诏令车骑将军、左卫将军郑先护为使持节、大将军、大都督，和都督李侃孟赶赴行台握旦那裹去讨伐住远。
十有一月癸酉朔，诏车骑将军、左卫将军郑先护为使持节、大将军、大都督，与都督李侃希赴行台杨昱以讨之。
On the first day of November, an imperial edict announced that Zheng Xian Hu, the general of Che Qi and left guard, would be appointed as Shi Chi Jie, general and grand governor, and Li Kan Meng would go to Xing Tai Wo Dao Na to attack Zhu Yuan.