《新唐书·列传·卷一百四十二》
常与大食、吐蕃、葛禄相依仗。吐蕃往来的人害怕回鹘抢劫，一定住在葛禄，以待黠戛斯护送。
然常与大食、吐蕃、葛禄相依杖，吐蕃之往来者畏回鹘剽钞，必住葛禄，以待黠戛斯护送。
They often relied on the Arabs, Tibetans, and Gelu people. When Tibetans traveled, they were afraid of being robbed by the Uyghurs, so they had to stay in Gelu and wait for Shiliang to escort them.