大唐西域記 3.26

3.26

龍池東南行三十餘里，入兩山間，有窣堵波，無憂王之所建也，高百餘尺。是釋迦如來懸記，當來慈氏世尊出興之時，自然有四大寶藏，即斯勝地，當其一所。聞諸先志曰：或時地震，諸山皆動，周藏百步，無所傾搖。諸有愚夫，妄加發掘，地為震動，人皆蹎仆。傍有伽藍，圮損已甚，久絕僧徒。

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.