佛祖歷代通載 7.36

7.36

南涼禿髮烏孤（河西鮮卑人。其先與魏同出。八世祖匹孤率其部。自塞北遷于河西。呂光遣使署為益州牧。自稱大單于西平王。都廣武徙樂都。改年太初。僭立三年）。

Tufa Wugu of the Southern Liang (a Xianbei of Hexi; his ancestors shared origins with the Wei; his ancestor of the eighth generation, Pigu, led his tribe from north of the frontier to migrate to Hexi; Lü Guang sent an envoy appointing him Regional Governor of Yizhou; he proclaimed himself Great Chanyu and King of Xiping; made his capital at Guangwu and moved to Ledu; changed the era to Taichu; illegitimately reigned for three years).