《资治通鉴·汉纪·汉纪三十八》
秋季，八月，在宗庙举行酎礼之后，有关官员再度上奏，请命令东平王刘苍返归封国。
秋，八月，饮酎毕，有司复奏遣东平王苍归国，帝乃许之，手诏赐苍曰： 骨肉天性，诚不以远近为亲疏；然数见颜色，情重昔时。
In the eighth month of autumn, after the ritual of offering sacrifices to ancestors was completed, the official in charge submitted a memorial again, asking to give the order to let Dongping Wang Liu Cang return to his enfeoffment.