大唐西域記 6.46

6.46

太子易衣側不遠，有窣堵波，無憂王之所建也，是太子剃髮處。太子從闡鐸迦取刀，自斷其髮，天帝釋接上天宮，以為供養。時淨居天子化作剃髮人，執持銛刀，徐步而至。太子謂曰：「能剃髮乎？幸為我淨之。」化人受命，遂為剃髮。踰城出家時亦不定，或云菩薩年十九，或曰二十九，以吠舍佉月後半八日踰城出家，當此三月八日，或云以吠舍佉月後半十五日，當此三月十五日。

By the side of the stûpa commemorating this event, and not far from it, is a stûpa built by Asôka-râja. This is the spot where the prince had his head shaved. The prince taking a knife (sword) from the hands of Chandaka, himself cut off his locks. Sakra, king of Devas, took the hair to his heavenly palace, to offer it worship. At this time a Suddhavasa-deva, transforming himself into a barber, and holding his razor in his hand, advanced towards the prince. The latter hereupon addressed him, "Can you shave off the hair? Will you favour me by so doing to me?" The transformed Deva being so directed, accordingly shaved his head. The time when the prince left the city and became a recluse is not quite fixed. Some say that Bodhisattva was then nineteen years of age; others say he was twenty-nine, and that it was on the eighth day of the second half of the month Vaisakha, which corresponds to our fifteenth day of the third month. To the south-east of the head-shaving stûpa, in the middle of a desert, going 180 or 190 li, we come to a Nyagrodha grove in which there is a stûpa about 30 feet high. Formerly, when Tathagata had died and his remains had been divided, the Brahmans who had obtained none, came to the place of cremation, and taking the remnant of coals and cinders to their native country, built this stûpa over them, and offered their religious services to it. Since then wonderful signs have occurred in this place; sick persons who pray and worship here are mostly cured.