《北史·列传·卷二十六》
以后相互攻伐杀戮，仅剩下十来个，其余的都已消失，什么都不存在了，只剩下一片废墟，无法记载和认识它们。
其后更相屠灭，仅有十存，自余沦没，扫地俱尽，空有丘墟，不可记识。
After that, there were constant killings and attacks, reducing them to ten or so. The rest all diminished and left nothing behind, except for ruins that we cannot recognize and describe.