《资治通鉴·晋纪·晋纪九》
庚午，汉主刘渊卧病不起，辛未，以陈留王刘欢乐任太宰，长乐王刘洋为太傅，江都王刘延年为太保，楚王刘聪为大司马、大单于，都兼任录尚书事。
庚午，汉主渊寝疾；辛未，以陈留王欢乐为太宰，长乐王洋为太傅，江都王延年为太保，楚王聪为大司马、大单于，并录尚书事。
On Gengwu, the Master of Han, Liu Yuan, fell ill and could not get out of bed. On Xinwei, he appointed Liu Huanle, the King of Chenliu, as the Grand Administrator of the Three Dukes, Liu Yang, the King of Chang Le, as the Grand Tutor, Liu Yannian, the King of Jiangdu, as the Grand Protector, Liu Cong, the King of Chu, as the Grand Sima and the Great Chanyu, and all of them concurrently served as the Shangshu Shi.