大唐西域記 8.45

8.45

菩提樹南不遠，有窣堵波，高百餘尺，無憂王之所建也。菩薩既濯尼連河，將趣菩提樹，竊自思念何以為座？尋自發明當須淨草。天帝釋化其身為刈草人，荷而逐路。菩薩謂曰：「所荷之草頗能惠耶？」化人聞命，恭以草奉，菩薩受已，執而前進。

Not far to the west of the Bôdhi tree is a large vihâra in which is a figure of Buddha made of teou-shih (brass), ornamented with rare jewels; he stands with his face to the east. Before it is a blue stone with wonderful marks upon it and strangely figured. This is (the place where) Buddha sat on a seven-gemmed throne made by Sakra Dêva-râja when Brahma-râja built a hall for him of seven precious substances, after he had arrived at complete enlightenment. Whilst he thus sat for seven days in reflection, the mysterious glory which shone from his person lit up the Bôdhi tree. From the time of the holy one till the present is so long that the gems have changed into stone. Not far to the south of the Bôdhi tree is a stûpa about 100 feet high, which was built by Asôka-râja. Bôdhisattva having bathed in the Nairañjanâ river, proceeded towards the Bôdhi tree. Then he thought, "What shall I do for a seat? I will seek for some pure rushes when the day breaks." Then Sakra-râja (Shih) transformed himself into a grass-cutter, who, with his burden on his back, went along the road. Bôdhisattva addressing him said, "Can you give me the bundle of grass you are carrying on your back?" The assumed grass-cutter, hearing the request, offered the grass with respect. Bodhisattva having received it, went onwards to the tree.