道宣律師感通錄 1.20

1.20

又問。若爾周穆已後諸王逢置塔時。何為此土文記罕現。答云。靈塔為於前緣。多寶是神靈所造。人有見者。少故文字少傳。楊雄劉向尋於廟書。往往見有。佛經豈非秦前已有經塔。

I asked again: "If so, when the kings after King Mu of Zhou came across the placement of stupas, why do written records in this land rarely mention them?" He replied: "Efficacious stupas existed due to past conditions; Prabhūtaratna was made by spirits and divinities. Few humans have seen them, so few written records have been transmitted. Yang Xiong and Liu Xiang searched the shrine records and occasionally saw them. Regarding Buddhist scriptures, how could it be that scriptures and stupas did not already exist prior to Qin?"