大唐西域記 2.43

2.43

城外東南八九里有卑鉢羅樹，高百餘尺，枝葉扶疎，蔭影蒙密。過去四佛已坐其下，今猶現有四佛坐像。賢劫之中，九百九十六佛皆當坐焉。冥祇警衛，靈鑒潛被。釋迦如來於此樹下南面而坐，告阿難曰：「我去世後，當四百年，有王命世，號迦膩色迦，此南不遠起窣堵波，吾身所有骨、肉舍利，多集此中。」

Inside the royal city, towards the north-east, is an old foundation (or a ruinous foundation). Formerly this was the precious tower of the pātra of Buddha. After the Nirvāṇa of Buddha, his pātra coming to this country, was worshipped during many centuries. In traversing different countries it has come now to Persia. Outside the city, about 8 or 9 li to the south-east, there is a pipala tree about 100 feet or so in height. Its branches are thick and the shade beneath sombre and deep. The four past Buddhas have sat beneath this tree, and at the present time there are four sitting figures of the Buddhas to be seen here. During the Bhadrakalpa, the 996 other Buddhas will all sit here. Secret spiritual influences guard the precincts of the tree and exert a protecting virtue in its continuance. Sakya Tathagata sat beneath this tree with his face to the south and addressed Ananda thus: — "Four hundred years after my departure from the world, there will be a king who shall rule it called Kanishka (Kia-ni-se-kia); not far to the south of this spot he will raise a stupa which will contain many various relics of my bones and flesh."