《宋书·志·卷十七》
宋文帝元嘉二十二年四月，皇太子讲解《孝经》一篇，在国子学释奠先师孔子，如同晋朝旧例。
宋文帝元嘉二十二年四月，皇太子讲《孝经》通，释奠国子学，如晋故事。
In the twenty-second month of the fourth month of Emperor Wen of Song's Yuanjia period, the crown prince expounded one chapter of the Classic of Filial Piety and offered sacrifices to Teacher Confucius in the state school, as per the old customs of the Jin Dynasty.