佛祖歷代通載 4.116

4.116

（癸丑）　改綏和（都水使者劉向集列仙傳。檢藏得梵本佛經六十餘卷。編入仙傳。則知自周以來自之人未識爾）。

(Guichou) The era was changed to Suihe (Liu Xiang, Commissioner of Waterways, compiled the Liexian zhuan; upon inspecting the imperial archives he obtained more than sixty scrolls of Buddhist scriptures in Indic script and compiled them into the Xian zhuan. Thus one knows that these have existed since the Zhou dynasty, but people of later times simply did not recognize them).