《新唐书·列传·卷一百四十三》
那时，郓州朱宣兄弟被朱全忠所困，派人来河东告急，克用请求借道魏州前去救援。
时郓州硃宣兄弟为全忠所困，使来告，克用请道于魏救之。
At that time, Zhu Xuan brothers from Yunzhou were besieged by Zhu Quanzhong. They sent people to Hedong to ask for urgent assistance. Keyong requested to use the Wei route to go to their rescue.