《资治通鉴·汉纪·汉纪二十九》
把匈奴国土百姓分成十五个部分，物色呼韩邪单于的子孙十五人，全都立为单于。
分其国土人民以为十五，立呼韩邪子孙十五人皆为单于。
To divide the people in Xiongnu into fifteen parts, and to find fifteen descendants of Chanyu Huhanye to be appointed as Chanyu respectively.