大唐西域記 4.9.2

4.9.2

To the south-west of the capital and west of the river Yamuna is a sangharama, outside the eastern gate of which is a stupa built by Asoka-raja. The Tathagata, when in the world in former days, preached the law in this place to convert men. By its side is another stupa, in which there are relics of the Tathagata's hair and nails. Surrounding this on the right and left are stupas enclosing the hair and nail relics of Sariputra and of Mu-te-kia-lo (Maudgalyayana) and other Arhats, several tens in number. verted to false doctrine, and forsook the orthodox views. Now there are five sanghārāmas in places where masters of treatises from different countries, holding controversies with the heretics and Brāhmans, prevailed; they were erected on this account.