《魏书·列传·卷七十九》
早先文昭皇太后怀上世宗的时候，梦见被太阳追逐，既而又化为一条龙缠绕着皇后，皇后醒来之后受到惊吓，就染上了心病。
初文昭皇太后之怀世宗也，梦为日所逐，化而为龙而绕后，后寤而惊悸，遂成心疾。
Earlier on, when Empress Dowager Wenzhao was pregnant with Emperor Shizong, she dreamt of being pursued by the sun. Then the sun turned into a dragon and coiled itself around the empress. When she awoke, she had been so startled that she had come down with a heart ailment.