《北史·列传·卷四十》
斛律光听说杀死了和士开，拍着巴掌大笑，说： 龙子做事，本来就不像是凡人。 
光闻杀士开，抚掌大笑曰： 龙子作事，固自不似凡人。 
When Hujuguang heard that He Shikai was killed, he clapped his hands and laughed, saying: A dragon’s child does things, it is originally unlike mortals.