《资治通鉴·后唐纪·后唐纪七》
乙酉，明宗因为契丹人越来越侵逼北部边疆，命速议选任河东统帅；石敬瑭想要承担，而范延光、赵延寿想任用康义诚，议论了很长时间不能决定。
乙酉，上以胡寇浸逼北边，命趣议河东帅；石敬瑭欲之，而范延光、赵延寿欲用康义诚，议久不决。
On the day of Yiyou, Mingzong ordered to quickly discuss the selection of the commander of Hedong because the Khitans were increasingly encroaching on the northern border; Shi Jingtang wanted to take up the post, while Fan Yanguang and Zhao Yanshou wanted to use Kang Yicheng. They discussed it for a long time but could not make a decision.