《后汉书·本纪·孝安帝纪》
如果有要回本郡的，当地政府发给证明文件；不想回去的，就不要勉强。 
若欲归本郡，在所为封长檄；不欲，勿强。 
If there are those who want to return to this county, the local government will issue a certificate; if they do not want to go back, do not force them.