《旧唐书·本纪·卷二》
这年，户部奏称：中国人从塞外归来及突厥前前后后归附、开辟四边少数民族地区为州县的地方，男女有一百二十余万人口
是岁，户部奏言：中国人自塞外来归及突厥前后内附、开四夷为州县者，男女一百二十余万口。
In this year, the Ministry of Finance reported that there were more than 1.2 million men and women who had returned from beyond the Great Wall, and who had surrendered to the Turks before and after the establishment of prefectures and counties in the border areas of ethnic minorities.