《北齐书·列传·卷四十八》
孝裕又劝长仁说： 王爷假装生病，士开一定会来探望，你就趁机杀了他。
孝裕又说长仁曰： 王阳卧疾，士开必来，因而杀之。
Xiaoyu suggested to Changren: “Since the prince is pretending to be sick, He Shidai will definitely come and visit. You can just kill him then.”