《后汉书·本纪·光武帝纪下》
于是云中、五原、朔方、北地、定襄、雁门，上谷和代等八郡民众归本士。
于是云中、五原、朔方、北地、定襄、雁门、上谷、代八郡民归于本土。
As a result, the public of the eight counties of Yuzhong, Wuyuan, Shuofang, Beidi, Dingxiang, Yanmen, Shanggu, and Dai returned to the main territory.