Huìguāng 慧光 / 惠光 (active 8th century), hào Dàzhào jūshì 大照居士 (“Great Illumination Lay Practitioner”), Táng-dynasty lay Buddhist practitioner in the Chán tradition. Native of Yōngzhōu Chāng’ān 雍州長安 (the Táng capital, modern Xī’ān), lay surname Lǐ 李. Studied under two major early-Chán teachers whose identities are somewhat tentative: “Ān 安” (most plausibly identified as Lǎo’ān / Sōngshān Huìān 嵩山慧安, c. 582–709, a dharma-heir of Hóngrěn in the Dōngshān line) and “Huì 會” (most plausibly Hézé Shénhuì 荷澤神會, 684–758, the major Southern-School polemicist).
The dual-teacher pattern — with both a senior Northern-School-affiliated master and the leading Southern-School polemicist in the same practitioner’s career — places Huìguāng uniquely at the Northern-Southern school transition of mid-8th century Chāng’ān and Luòyáng.
Only one work securely attributed: KR6q0107 Dàshèng kāi xīn xiǎn xìng dùn wù zhēn zōng lùn 大乘開心顯性頓悟真宗論 (1 juan, T85 n2835, Dūnhuáng manuscript recension). No DILA authority entry under this specific identity; distinct from several other Chinese Buddhist figures of the names 慧光 / 惠光.
No biographical material survives beyond the third-person self-description in the Zhēn zōng lùn’s own preface.
name: 慧光 pinyinName: Huìguāng alternateNames: [惠光, 光統律師, Guāngtǒng lǜshī, 聖沙彌, 大覺慧光, 釋慧光, 釋惠光] dynasty: 北魏-東魏 birthDate: 469 deathDate: 538 cbdbId: dilaAuthorityId: A006354 created: 2026-04-28 updated: 2026-04-28
Huìguāng 慧光 (469–538), styled Guāngtǒng lǜshī 光統律師 (“Vinaya Master Guāngtǒng”), Shèng shāmí 聖沙彌 (“Saintly Novice”), and Dàjué Huìguāng 大覺慧光 (“Huìguāng of Dàjué [Monastery]”). Lay surname Yáng 楊, native of Chánglú 長蘆 in the lower Héběi region. The most consequential Buddhist scholar-monk of the early sixth century in the northern dynasties: regarded by tradition as the “founder of the southern lineage” of the Dìlùn 地論宗 school (Dìlùn nándào pài 地論宗南道派) and a principal early systematizer of the Sìfēn lǜ 四分律 (Dharmaguptaka Vinaya) tradition in China.
Per the Xù gāosēng zhuàn 續高僧傳 (T2060, juan 21) and DILA A006354: at the age of thirteen Huìguāng accompanied his father to Luòyáng, where he was ordained under 佛陀扇多 Buddhaśānta — the famous dhyāna master and translator who, with Bodhiruci 菩提流支, would shortly translate Vasubandhu’s Daśabhūmika-vyākhyāna. So precocious in scriptural learning was the young Huìguāng that he was popularly nicknamed Shèng shāmí “Saintly Novice.” When in Yǒngpíng 永平 1 (508 CE) Lènà Mótí 勒那摩提 and Bodhiruci each produced separate translations of Vasubandhu’s Daśabhūmika-commentary, Huìguāng — having access to the Sanskrit (or BHS) original — collated the two versions, identified the points of agreement and divergence, and produced a unified Chinese recension; this collation effectively founded the Dìlùn 地論 school as a distinct tradition. He subsequently composed the Sìfēn lǜ shū 四分律疏, the Sìfēn lǜ jiè běn shū 四分戒本疏, and other Vinaya commentaries that decisively established the Sìfēn lǜ as the dominant Vinaya tradition in northern China — the lineage from which Daoxuan 道宣 and the Tang 律宗 (Lǜ-zōng) would later descend.
Huìguāng’s exegetical activity also included the very early Huāyán jīng yì jì 華嚴經義記 (T2756, one fascicle preserved at Dūnhuáng), which is one of the earliest known Chinese commentaries on the Avataṃsaka and a direct doctrinal antecedent to the later Huáyán school of Zhìyǎn and Fǎzàng. He died on the 14th of the 3rd month of Yuán-xiàng 元象 1 (538/4/30) at the Dàjué-sì 大覺寺 in Yè 鄴 (the Eastern Wèi capital, modern Lín-zhāng, Héběi), age 70. His students Fǎshàng 法上, Sēngfàn 僧範, and Dàopíng 道憑 carried his legacy forward into the late Northern Qí and early Suí; through Sēngfàn’s lineage the Dìlùn tradition descended ultimately to the Suí-Tang Huáyán synthesis.
name: 慧光 pinyinName: Huìguāng alternateNames: [慧門光, 慧門光公, Emon-Kō] dynasty: 日本江戶 birthDate: deathDate: cbdbId: dilaAuthorityId: created: 2026-05-06 updated: 2026-05-06
Edo-period Japanese Vinaya scholar Huìmén Guāng 慧門光 (Japanese reading conventionally Emon-kō) of Cháorìshān 朝日山 (in Luòběi 洛北 = north of Kyōto). Acting in the late seventeenth century, he prepared the jiāzhù 夾註 (“interlineated”) edition of Liǎorán’s Shìmén guījìng yí tōngzhēn jì (KR6k0253, X59n1095) — collating multiple manuscripts of the corrupt Sòng original to produce a usable text, with interlineated kēpàn 科判 chapter-divisions and Japanese reading-glosses (héxùn 和訓) for ease of student use. His edition was prefaced in Genroku 元祿 jǐsì 已巳 (1689) at the Mìyán dàochǎng 密嚴道場 in Luòxī 洛西 by Miàobiàn 玅辨, who praised Huìguāng as “the leading figure of the Vinaya court” (lǜyuàn zhī qiáochǔ 律苑之翹楚). The catalog meta records his dynasty as 日本.