《旧五代史·后晋·列传十二》
开运元年一月，契丹南侵，攻破后晋博陵，少帝驾临澶渊。
开运元年正月，契丹南牧，陷我博陵，少帝幸澶渊。
In the first month of the first year of the Kaiyun era, the Khitan invaded the south and conquered Later Jin's Boling. The young emperor arrived in Chanyuan.