Dìngzōng lùn 定宗論
A Treatise Fixing the Doctrinal Position by 蓮剛 (對述)
About the work
A single-fascicle doctrinal apology for the Japanese Tendai school by Rengō 蓮剛, an otherwise obscure Heian-period Tendai monk who identifies himself as a “disciple of the Tendai school” (天台門徒) and reports composing the work in response to questions encountered while on a missionary tour of the Saikaidō 西海道 (the Kyushu region of medieval Japan). The work is structured as a series of twelve point-by-point chapters defending the Tendai school against the doctrinal positions of the Sānlùn, Faxiang, Huayan, Risshū, and Shingon schools, and concludes with a final-chapter argument that all eight Buddhist schools must be ranked according to a single doctrinal-classification (pànshì) system rooted in the Tendai yīshèng yuánjiào.
Abstract
Authorship. The header is explicit: “Disciple of the Tendai school (天台門徒), Rengō, has set forth in response* (對述)*.” The “correspondence-response” format (對述) is unusual and characteristic of catechetic literature; Rengō structures the text as a series of questions posed by laymen and answered by him on the Saikaidō missionary circuit.
Date. No internal date and no datable biographical references. Rengō has no entry in CBDB, DILA Authority, or major standard Buddhist biographical dictionaries; he is an obscure regional Tendai missionary. The work’s polemical interest in Sānlùn as a serious rival (chapter 4, “Refuting the Sānlùn school’s establishment of its patriarchal lineage as having ten unsettled points”) is internally datable: Sānlùn was a significant school in Japan from the late Nara through the early Heian period and progressively declined thereafter. The mention of the Shingon school as a fully-established system (chapter 7) requires post-Kūkai (post-806). The bracket notBefore = 850, notAfter = 1200 is conservative.
The work’s 12 chapters proceed systematically:
- Response on the high patriarch of the Lotus school (對述法華宗高祖第一) — establishing Śākyamuni as the absolute origin.
- General response on the Lotus school’s master-brother lineage and the dharma it studies (總述法華宗師兄并所學法第二).
- Brief response on the Buddhas-patriarchs and Dharma-entrusting masters (略述佛祖并付法大師第三) — the lineage of the 30 patriarchs from Śākyamuni to Zhìyǐ.
- Refutation of the Sānlùn school’s establishment of its patriarchal lineage, having ten unsettled points (難三論宗立祖有十種未定第四).
- Statement on the four-fold harm and ten-fold loss in establishing patriarchal lineages for the various schools (述立諸宗祖有四害十失第五).
- Setting forth the Tiantai path and showing the great doctrinal outline (出天台道泛示教大概第六).
- Setting forth the Shingon path and showing its great outline briefly (出眞言道略示大綱第七).
- Listing the Sānlùn school’s master-patriarchs, very few in number (列三論宗師祖甚小第八).
- Statement on the Huayan school’s status as a path (述華嚴宗之爲道第九).
- Statement on the Faxiang school’s transmission of the lamp through branches and leaves, narrow and sparse (述法相宗傳燈枝葉狹疎第十).
- Following the Buddha’s teaching of sequence, fixing the eight schools’ status as paths (依佛説次第定八宗之爲道第十一).
- In accord with the Middle-Way principle, criticizing the various schools’ theses (依中道理諫群家論第十二).
The exposition of the Lotus-school’s “high patriarch” question is theologically interesting: Rengō refuses any earthly genealogy. “Zhì-yǐ Dàshī is the thirtieth master in descent from Śākyamuni. If we discuss the ‘high patriarch’ (i.e. the absolute origin), the suspicion of confusion arises from listening. Having already taken faith in the Lotus school — which Buddha is not the high patriarch?” He then provides three rounds of high-patriarchal succession: (1) the kalpa-distant Śākyamuni who attained Buddhahood in the deep past and preaches the Lotus eternally; (2) the past 20,000 Candrasūrya-pradīpa Buddhas, the Mahābhijñā-jñānābhibhū and the others; (3) the present Buddhas of the ten directions preaching the Lotus in dust-particle numbers of Buddha-lands. The text closes with a zàn (praise-verse) suite of formal poetic encomia for the Tendai school’s seven jué-pò (decisive enlightenments) and the Lotus’s “one great cause-and-condition” (一大因縁) for which the Buddha appears in the world.
The work is a relatively rare witness to provincial Tendai missionary preaching in the Heian period and to the way the Tendai doctrinal apparatus was deployed in inter-school polemic at the regional level.
Translations and research
- No complete Western-language translation located.
- No substantial secondary scholarship on Rengō or the Dìng-zōng lùn has been located.
Other points of interest
The work’s structural method — arguing the Tendai school’s superiority by detailed critique of each rival school’s transmission-of-lineage, not by direct doctrinal refutation — is unusual. Rengō effectively argues that lineage-establishment (祖統) is itself a polemical construct, and that the Lotus’s explicit eternal-Buddhahood doctrine reframes the question.