On Yuan Chwang's Travels in India, 629–645 A.D. v1.c10.39

v1.c10.39

North-west from the Mahāvana monastery, and 30 or 40 *li* down the mountain, was the *Mo-yü* (摩愉) monastery with a tope above 100 feet high, and at the side of it a large square stone on which were the Buddha's footprints. These were left when the Buddha treading on the stone sent forth a Koṭi of ray of light which illumined the Mahāvana Monastery while he related his former births to men and devas. At the base of the tope was a stone of a pale yellow colour yielding a constant exudation; it was here that the Buddha as P'usa hearing Buddhist doctrine wrote the sacred text with a splinter from one of his bones.