《新五代史·列传·晋臣传第十七》
当初，晋出帝即位，晋的大臣们拟议报告契丹，送上表章自称为臣子，景延广一人不同意，只是送信自称孙子罢了，大臣们都知道这样不行，而又不能强求。
初，出帝立，晋大臣议告契丹，致表称臣，延广独不肯，但致书称孙而已，大臣皆知其不可而不能夺。
At the beginning, when Emperor Chudi of Jin ascended to the throne, the ministers of Jin proposed to report to Khitan, and sent a letter to call themselves subjects. Jing Yanguang alone disagreed, and only sent a letter to call himself a grandson, but the ministers all knew that it would not work. , but can't be forced.