On Yuan Chwang's Travels in India, 629–645 A.D. v1.c10.31

v1.c10.31

Above 30 *li* south-west from the Apalāla dragon spring, and on the north bank of the river, was a large flat stone with the Buddha's footprints; these, the size of which varied with the religious merit of the measurer, were left by the Buddha when he was going away after having converted the dragon; a building had been erected over them and people from far and near came to make offerings. Above 30 *li* farther down the river was the rock on which Buddha had washed his robe, the lines of the robe being still distinct like carving.