Chéng Jiǒng 程迥
Style name Kějiǔ 可久. Originally of Shāsuí 沙隨 in Nínglíng 寧陵 prefecture (modern Hénán); after the southern crossing the family moved to Yúyáo 餘姚 in Shàoxīngfǔ (modern Zhèjiāng), and Chéng Jiǒng is conventionally also called Master Shāsuí 沙隨先生 from his ancestral seat. Lifedates not recoverable from CBDB; active in the second half of the twelfth century. The Sòngshǐ (juan 437) gives him a biography in the Rúlín section.
Studied under Wénrén Màodé 聞人茂德 of Jiāxīng (a substantial early-Southern-Sòng Confucian) and Yù Chū 喻樗 (1097–1167, zì Zǐcái 子才, of Yánlíng — a substantial Dàoxué predecessor with his own surviving corpus). Jìnshì of 1163 (Lóngxīng 1). Held a junior provincial appointment as Déxīngxiàn chéng 德興縣丞 (“Vice Magistrate of Déxīng County” in modern Jiāngxī).
His intellectual significance is principally as one of Zhū Xī’s senior interlocutors and substantive teachers on the Yì and on canonical-text method. Wú Chéng 吳澄 records: “[Chéng] Jiǒng to Master Zhū was a senior; Master Zhū served him with the shī-rite (the rite of teacher)” (Jiǒng yú Zhūzǐ wéi zhàngrénháng, Zhūzǐ yǐ shīlǐ shì zhī 迥於朱子為丈人行，朱子以師禮事之) — placing him among the immediate predecessors who shaped the formative-Zhū Yì-doctrine.
His surviving works:
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[[KR1a0030|Zhōuyì gǔ zhàn fǎ]] 周易古占法 in one juan + Zhōuyì zhāngjù wài biān 周易章句外編 in one juan — the divinatory-method treatise + a miscellaneous collection of Yì-readings and divinatory-verification records. The two works were already conjoined-as-if-one in Chén Zhènsūn’s Sòng-period witness; the Sìkù editors restore the proper bibliographic distinction.
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Lúnyǔ shuō 論語說 — a Lúnyǔ commentary, partially surviving.
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Mèngzǐ zhāngjù 孟子章句 — a Mèngzǐ punctuation-and-reading commentary, partially surviving in citations.
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Yī jīng zhèngběn shū 醫經正本書 — a treatise on medical-canonical orthography, surviving complete; one of the more interesting late-Sòng medical-classical works.
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Shāsuí zhī yǔ 沙隨之語 — recorded sayings, surviving in fragments.
His doctrine on the Yì — a divinatory-method reading rooted in Shào Yōng’s “doubling” method, with technical innovation in nì shù 逆數 (inverse-counting) — was substantively absorbed by Zhū Xī’s Yìxué qǐméng 易學啟蒙 (1186, with Cài Yuándìng); the Sìkù tiyao on KR1a0030 explicitly notes that “Master Zhū’s Qǐméng extensively used [Chéng Jiǒng’s] examples.”
Not to be confused with the slightly earlier 程逈 (also written 程迥 in some early prints) who is conventionally a separate person of the late Northern Sòng.