《资治通鉴·唐纪·唐纪四十九》
云南王异牟寻欺骗来使说： 唐朝的使者，本来便是蛮人，韦皋听任他回来，并没有别的图谋。 
云南王异牟寻绐之曰： 唐使，本蛮也，皋听其归耳，无它谋也。 
King Yimuxun of Yunnan deceived the envoy and said: "The envoy of the Tang Dynasty is originally a barbarian. Wei Gao let him come back and had no other plans."