Note 11 — Chapter XIII · NAGÂRA. FESTIVAL OF BUDDHA’S SKULL-BONE. OTHER RELICS, AND HIS SHADOW.
James Legge translation
Entering the mouth of the valley, and going west, he found Buddha’s Saṅghâli,11 where also there is reared a vihâra, and offerings are made. It is a custom of the country when there is a great drought, for the people to collect in crowds, bring out the robe, pay worship to it, and make offerings, on which there is immediately a great rain from the sky.