Jīnguāngmíng zuìshèngwáng jīng xuánshū 金光明最勝王經玄樞
The Mystic Pivot of the Sūtra of the Golden Light, the Most Victorious King (J. Konkōmyō saishōōkyō genzū) by 願曉 (Yuànxiǎo / Gangyō, 集)
About the work
A ten-fascicle Sanron-school 三論 commentary on Yìjìng’s 義淨 (635–713) translation of the Suvarṇaprabhāsottama-sūtra — the Jīnguāngmíng zuìshèngwáng jīng 金光明最勝王經 (KR6i0303 = T665) — compiled by the Gangō-ji 元興寺 monk Gangyō 願曉 (835–871) of the early-Heian Sanron tradition. The title Xuánshū 玄樞 (“the mystic pivot / hinge”) declares the work’s ambition to be the doctrinal clavis to the sūtra, harmonising the principal earlier commentarial views. The commentary is preserved at T56n2196 in ten juan; the Taishō recension reproduces a Hōryaku 寶曆 3 (1753) manuscript collation made from Heian and Kamakura-period transmission copies.
Structural Division
- 金光明最勝王經玄樞 Xuánshū — commentary on KR6i0303 金光明最勝王經 (Yìjìng translation of the Suvarṇaprabhāsa-sūtra, T665).
Prefaces
The text opens with a substantial Sino-Japanese kanbun preface (序) signed by 從四位下文章博士兼播磨權守菅原朝臣 — Sugawara no Koreyoshi 菅原是善 (812–880), Bunshō hakase 文章博士 and father of Sugawara no Michizane. Koreyoshi reviews the history of the sūtra’s translation from Dharmakṣema’s 曇無讖 (Wúchèn) Northern Liáng version through Paramārtha’s Liáng Tàiqīng 梁太清 1 (547) version and Yìjìng’s Chángān recension, and presents Gangyō’s Xuánshū as the synthesis of the Sanron commentarial heritage descending from Daian-ji’s Gonsō 勤操 (758–827) — a Sanron master whom the preface eulogises as recently deceased. The preface concludes with Koreyoshi’s professed humility at having been entrusted with the task of writing the introduction. A second short verse-introduction in the body of the text (guī mìng sānshēn zhèngjué hǎi 歸命三身正覺海…) signed Gangō-ji shamen Gangyō tō shū 元興寺沙門願曉等集 (“compiled by Gangyō et al., monks of Gangō-ji”) opens the doctrinal exposition proper.
A Hōryaku-3 (1753) scribal colophon by 慶信’s-line Hōshō-in monk 成慶 (aged 69) records the manuscript transmission of the Xuánshū across the late-Heian and Kamakura periods through a ten-generation lineage of Sanron-Esoteric masters: 願曉─聖寶─延𬿒─觀理─法縁─澄心─濟慶─有慶─慶信─覺樹─寛信. The 1753 manuscript was collated against the Ryūshōin 龍松院 manuscript and a copy of the Kanshin 寛信 (Kanjuji 勸修寺 Hōmu) recension held by the Hakuei 伯映 lineage.
Abstract
The Xuánshū is the principal early-Japanese commentary on the Suvarṇaprabhāsa in its Yìjìng recension and the most extensive surviving doctrinal study of that sūtra produced in the East Asian Sanron tradition. Its method is articulated in the preface: Gangyō takes Paramārtha 真諦 (Zhēndì, 499–569) as the doctrinal root (根本) and Jñānagupta 闍那崛多 (523–600) as the branches (枝葉), harvesting the relevant views of multiple intervening masters wherever they are consistent with that root-and-branch structure. The commentary identifies one taste / one path (yī wèi yī dào 一味一道) and three kinds / three doctrines (sān zhǒng sān fǎ 三種三法) as the sūtra’s structural keys — the latter being the trikāya 三身, the triratna 三寶, and the trinīti / trividha 三歸 — and develops these against a Sanron èdì 二諦 (two-truths) framework.
Composition can be bracketed by external evidence. The preface postdates Gonsō’s death in 827 (he is mentioned as gù sōngjō 故僧正, “the deceased preceptor”), and was written by Sugawara no Koreyoshi during his tenure as Bunshō hakase — a post he held from c. 854 onwards. Composition must in any case predate Gangyō’s death in 871. The conservative window is therefore c. 854–871; the work was very likely completed in the 860s.
The Xuánshū is the foundational text of the Gangō-ji Sanron transmission of the Suvarṇaprabhāsa and underwrote the subsequent Heian and Kamakura Sanron-Esoteric synthesis that produced commentators such as Shōbō 聖寶 (832–909), founder of Daigo-ji, who is the second figure in the Xuánshū’s transmission lineage. The sūtra’s relation to the four heavenly kings, its protective-state ritual function in the Nara-Heian gōkoku 護國 system, and its rhetoric of the jinguang (golden light) of the dharma-body together account for the work’s centrality to early-Heian state Buddhism; the Xuánshū is the principal doctrinal exegesis underwriting the sūtra’s ritual deployment by the Heian court.
Translations and research
- Mizuno Kōgen 水野弘元 et al., eds. Konkōmyōkyō no kenkyū 金光明経の研究. Tokyo: Daitō Shuppansha, 1955; reprint Kokusho Kankōkai 1980. — Comprehensive Japanese-language study of the Suvarṇaprabhāsa commentarial tradition; treats the Xuánshū as the principal Japanese commentary on the Yìjìng recension.
- Misaki Ryōshū 三崎良周. Mikkyō to jingi shisō 密教と神祇思想. Tokyo: Sōbunsha, 1992. — Includes discussion of the Suvarṇaprabhāsa commentarial tradition in early-Heian state Buddhism, with the Xuánshū as a principal source.
- Abé Ryūichi. The Weaving of Mantra: Kūkai and the Construction of Esoteric Buddhist Discourse. New York: Columbia University Press, 1999. — Treats the Heian Sanron-Esoteric synthesis in which the Xuánshū is a central scholastic text.
- No full Western-language translation has been published.
Other points of interest
The Xuánshū’s ten-generation transmission lineage recorded in the Hōryaku-3 colophon — 願曉 → 聖寶 → 延𬿒 → 觀理 → 法縁 → 澄心 → 濟慶 → 有慶 → 慶信 → 覺樹 → 寛信 — is itself a valuable document of the late-Heian and Kamakura Sanron-Shingon transmission network. The line passes from Gangō-ji (Nara Sanron) to Daigo-ji (founded 874 by Shōbō, a Sanron-Esoteric figure) and eventually to Kanjuji 勸修寺, anchoring the Xuánshū in the late-Heian Esoteric mainstream and not in the original Nara Sanron school.