The Yi-Luo yuanyuan lu 伊洛淵源錄 "The Sources and Origins of the Rivers Yi and Luo" is a philosophical treatise written by the Neo-Confucian master Zhu Xi 朱熹 during the Southern Song period 南宋 (1127-1279). It records discussions between the philosophers Zhou Dunyi 周敦頤, Cheng Hao 程顥, Cheng Yi 程頤, Shao Yong 邵雍 and their teachers, friends and disciples, and stories from their lives. All these philosophers lived in Luoyang 洛陽 (modern Luoyang, Henan), there the two rivers Yi 伊水 and Luo 落水 unite their waters. The book consists of 14 juan "scrolls" and lists descriptions of conduct (xingzhuang 行狀), tomb inscriptions, chronological biographies (nianpu 年譜) and stories from their lives, and discourses (yulu 語錄). The aim is a history of the orgin and development of early Song period Neo-Confucianism, the relations between (a kind of "genealogy" of) the different masters (like Zhou Dunyi as the teacher of the brothers Cheng), the crystallization of its main teachings, and the formation of different schools. Zhu Xi's book, finished in 1173, provided ample material for the chapters on the Neo-Confucians (Daoxue道學) and the "Forest of Confucians" (Rulin 儒林) in the official dynastic history Songshi 宋史, and was a kind of forerunner for the first history of Neo-Confucianism, Sun Qifeng's 孫奇逢 Lixue zongzhuan 理學宗傳. The Yi-Luo yuanyuan lu was first printed in 1473 and is included in the collectanea Zhengyitang congshu 正誼堂叢書 and Zhuzi yishu 朱子遺書.
There is a supplement, the Yiluo yuanyuan xulu 伊洛淵源續錄, written by the Ming period 明 (1368-1644) scholar Xie Duo 謝鐸 (with a length of 6 juan), and one with the same title, written by the Qing period 清 (1644-1911) teacher Zhang Boxing 張伯行, with a length of 20 juan.
Jiaoyu da cidian bianzuan weiyuanhui 教育大辭典編纂委員會 (ed. 1991). Jiaoyu da cidian 教育大辭典, vol. 8, Zhongguo gudai jiaoyu shi 中國古代教育史, Shanghai: Shanghai jiaoyu chubanshe, vol. 1, p. 322.
Li Xueqin 李學勤, Lü Wenyu 呂文鬰 (1996). Siku da cidian 四庫大辭典, Changchun: Jilin daxue chubanshe, vol. 2, p. 979.
Zhang Liwen 張立文 (1987). "Yi-Luo yuanyuan lu 伊洛淵源錄", in Zhongguo da baike quanshu 中國大百科全書, Zhexue 哲學, Beijing/Shanghai: Zhongguo da baike quanshu chubanshe, vol. 2, p. 1082.