《新唐书·列传·卷一百四十六》
以前王孝杰自河源军将耽尔乙句贵迁置灵州。及至他反叛，就入牧坊掠夺群马，践踏州县。这就是把他们迁置中土没有好处的例证。
前日王孝杰自河源军徙耽尔乙句贵置灵州，既其叛，乃入牧坊掠群马，瘢夷州县，是则迁中土无益之成验。
Previously, Wang Xiaojie relocated Dan Er Yijuigui from Heyuan Army to Lingzhou. When he rebelled, he entered the pastures to plunder herds and trampled on states and counties. This is an example of the disadvantage of relocating them to Middle Earth.