《北史·列传·卷二十九》
杨素便将文帝的情况记录下来，报告给太子，宫人将他的信悄悄送给文帝，文帝看后十分恼怒，文帝宠爱的陈贵人也说太子对她轻狂无礼。
素条录事状，以报太子。宫人潜送于上，上览而大恚。所宠陈贵人又言太子无礼。
Yang Su then wrote down Emperor Wen's condition and reported it to the Crown Prince. A palace servant secretly sent his letter to Emperor Wen, who was very angry after reading it. Emperor Wen's favorite concubine, Chen Guiren, also said that the Crown Prince had been rude to her.