《新五代史·附录·四夷附录第一》
二月丁巳初一，在殿廷上陈设金吾六军、殿中省仪仗、太常寺乐舞，德光头戴通天冠，身穿绛色纱袍，手持大珪处理朝政，实行大赦，改晋国为大辽国，开运四年为会同十年。
二月丁巳朔，金吾六军、殿中省仗、太常乐舞陈于廷，德光冠通天冠，服绛纱袍，执大珪以视朝，大赦，改晋国为大辽国，开运四年为会同十年。
On the first day of the second month in Dingsi, the Jinwu Sixth Army, the ceremonial guards of the Dianzhong Province, and the music and dance of the Taichang Temple were displayed in the palace hall. Deguang wore a Tongtian Crown, a crimson gauze robe, and held a large Gui in his hand to handle government affairs. He implemented a general amnesty, changed the name of the Jin Dynasty to the Da Liao Kingdom, and changed the fourth year of Kaiyun to the tenth year of Huitong.