On Yuan Chwang's Travels in India, 629–645 A.D. v2.c19.140

v2.c19.140

To the south of this tank, the pilgrim continues, was another. When Buddha had attained samyak sambodhi he wanted to wash his clothes, and Indra created this tank for him. On its west side was a large rock: when Buddha had washed his garments he wanted to have them dried, and Indra brought him this rock from the Snow Mountains. Beside this was a tope where Julai put on the old clothes, and south from it, in a wood, was a tope at the place where he received the poor granny’s offering of old clothes.