《晋书·帝纪·第六章》
初二，下诏说： 昔日汉高祖、光武帝和魏武帝都曾免除良人为奴婢者，我朝武帝时，占据凉州的异族统治者败亡，那些作奴婢的人也都恢复原籍，可见这是历代的成规。
庚申，诏曰： 昔汉二祖及魏武皆免良人，武帝时，凉州覆败，诸为奴婢亦皆复籍，此累代成规也。
On the second day of the second month, an edict was issued stating: “In the past, Emperor Gaozu, Emperor Guangwu, and Emperor Wei Wu of the Han Dynasty had all exempted civilians from being enslaved. During the reign of Emperor Wu of our dynasty, the foreign rulers occupying Liangzhou were defeated and the enslaved people were all restored to their original status. This proves that it is a long-established rule.”