The Zhang Wanfu’s Runxuan Lingbao Wuliang Duren Jing Jue Yinyi 润玄灵宝无量度人经诀音义

Yinyi on the Essentials of the Runxuan Lingbao Wuliang Duren Jing (Pronunciation and Meaning of the Essentials for the Numinous Treasure Scripture of Infinite Salvation of the Moistened Mystery) Compiled by Zhang Wanfu, a Taoist priest during the reigns of Emperor Gaozong and Empress Wu Zetian of the Tang Dynasty (c. 7th century CE).

One juan (scroll), included in the Daozang (Taoist Canon) under the Dongzhenbu (True Grotto Section), Yujue lei (Jade Commentaries Category).

The first half of this work excerpts texts from various Lingbao scriptures of the Six Dynasties (c. 220–589 CE), such as the Jinzhuan Jianwen Jing (Scripture of the Golden Seal and Simple Script), Taiji Baojue (Precious Essentials of the Supreme Ultimate), and Dongxuan Lingbao Shibu Jing Xu (Preface to the Ten Sections of the Mysterious Grotto Numinous Treasure Scriptures). It elaborates on Taoist practices for reciting the Duren Jing (Scripture for Saving Beings), including spirit retention, mantra chanting, prayer recitation, qi guidance, and tooth tapping—collectively referred to as the "Jingjue" (Scriptural Essentials).

The second half, titled "Yinyi" (Pronunciation and Meaning), selects several rare characters and words from the scripture, providing their phonetic transcriptions, definitions, and corrections for individual erroneous characters. Attached at the end is the Jingshuo (Exposition on the Scripture), which analyzes the textual structure of the Duren Jing.