大唐西域記 10.18

10.18

伽藍側不遠有窣堵波，無憂王所建也，在昔如來於此七日說法開導。其側精舍，過去四佛坐及經行遺迹之所。有數窣堵波，並是如來說法之處，無憂王之所建也。從此西南行七百餘里，至烏荼國（東印度境）。

The Sramana, after listening, at once fathomed his meaning; no word or argument deceived him. With a few hundred words he discriminated and explained every difficulty, and then he asked (the heretic) as to the teaching (the principles) of his school. The words of the heretic were confused and his arguments devoid of force, and so his lips were closed and he could not reply. Thus he lost his reputation, and, covered with confusion, retired. The king, deeply reverencing the priest, founded this convent; and from that time and afterwards the teaching of the law widely extended (through the kingdom). By the side of the sanghārāma, and not far off, is a stūpa which was built by Aśōka-rāja. When Tathāgata was alive in the world he preached here for seven days, explaining (the law) and guiding (men). By the side of it is a vihāra; here there are traces where the four past Buddhas sat down and walked. There are several other stūpas in places where Buddha explained the excellent law. These were built by Aśōka-rāja. Going from this 700 li or so in a south-westerly direction, we come to the country of U-cha.