《旧唐书·列传·卷三十》
应当选择高昌可以册立的人册立他为可汗，征召首领，送还原来的国家，使他们承受洪恩，长期成为边境的屏障。
宜择高昌可立者立之，征给首领，遣还本国，负戴洪恩，长为籓翰。
The person in Gao Chang who can be installed should be selected to be their khagan, summon their chieftain, and send them back to their original country to make them bask in our favour, and serve as a screen to the frontier for generations hereafter.