著者

田中 公明

出版者

東京大学東洋文化研究所

雑誌

東洋文化研究所紀要 (ISSN:05638089)

巻号頁・発行日

vol.152, pp.400-381, 2007-12-19

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The S´rīvajramand44alālam4kāra nāma mahātantrarāja preserved in the Tibetan Kanjur has traditionally been classified as a Yoga Tantra and has been regarded as one of the longer versions of the Prajñāpāramitānaya-sūtra. Although there is no complete Chinese translation, it has long been known that the Jingangchang zhuangyan banruo boluomiduo jiao zhong yifen 金剛場荘厳般若波羅蜜多敎中一分 (Taishō no. 886), translated by Dānapāla, corresponds to the final section of the S´rīvajramand44alālam4kāra. Hitherto this tantra has received the attention of Japanese researchers primarily as an alternative version of either the shorter or longer version of the Prajñāpāramitānaya-sūtra. Through an examination of quotations in other texts and parallel passages shared with other tantras I have reached the conclusion that this tantra can be dated to the second half of the eighth century. Worthy of particular note is the existence of more than ten verses shared with the opening section of the Sarvabuddhasamāyoga, one of the earliest Mother Tantras, and there is a strong possibility that the S´rīvajramand44alālam4kāra has taken these verses from the Sarvabuddhasamāyoga. This indicates that the S´rīvajramand44alālam4kāra, a Yoga Tantra, postdates the Sarvabuddhasamāyoga, a Mother Tantra (albeit one of the earliest) belonging to the Highest Yoga Tantras. Although a large number of later Yoga Tantras are preserved in the Tibetan canon, the original Sanskrit text of none except the Sarvadurgatiparis´odhana-tantra has survived. Consequently their importance has been underestimated, but there is a need for further research on these tantras in order to elucidate the development of Indian Tantric Buddhism.