《后汉书·列传·王刘张李彭卢列传》
起初，王莽篡位时，长安中有自称是成帝的儿子刘子舆的人，王莽将他杀了。
初，王莽篡位，长安中或自称成帝子子舆者，莽杀之。
Initially, when Wang Mang usurped the throne, there was a person in Chang'an who claimed to be the son of Emperor Cheng, Liu Ziyu, and Wang Mang killed him.