大唐西域記 3.3.2

3.3.2

Going 30 li or so to the south-east of the Naga tank, we enter a gorge between two mountains, where there is a stupa built by Asoka-raja. It is about 100 feet in height. This is where Sakya Tathagata delivered a prediction, that when Maitreya, Lord of the World, appeared hereafter, there should also appear of themselves four great gem treasures, and that in this excellent land there should be one. According to tradition, we find that whenever there is an earthquake, and the mountains on every side are shaken, all round this sacred spot (treasure) to the distance of 100 paces there is perfect stillness. If men are so foolish as to attempt to dig into the place (or ground surrounding it), the earth shakes again, and the men are thrown down headlong. By the side of the stūpa is a saṅghārāma in ruins, and which has been for a long time deserted and without priests.