大唐西域記 2.42

2.42

王城內東北有一故基，昔佛鉢之寶臺也。如來涅槃之後，鉢流此國，經數百年，式遵供養，流轉諸國，在波剌斯。

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."