《宋书·志·卷十六》
晋元帝叁里三年正月乙卯日，元帝下诏令说： 我虽然是继承了世祖，然而对于怀帝、愍童而言，我都是居于臣子的地位。
晋元帝太兴三年正月乙卯，诏曰： 吾虽上继世祖，然于怀、愍皇帝，皆北面称臣。
On the day of Yi Mao in the first month of the third year of the reign of Emperor Yuan of the Jin Dynasty, Emperor Yuan issued an edict saying: Although I have succeeded the World's Ancestor, with regard to Emperor Huai and Emperor Min Tong, I am in the position of a subject.