Kihwa's commentary to the redaction of five famous East Asian scholars on the Diamond Sutra 金刚经. This includes the commentaries by （1） Zongmi 宗密; the Jingang jing shoulun zuanyao 金刚经疏论纂要. （2） Huineng 慧能 the Jingang jing jieyi 金刚经解义. （3） Shuanglin fu 双林傅， the Liangzhao fu dashi song jingang jing 梁朝傅大师颂金刚经. （4） Yefu Daochuan 冶父道川. （5） Yuzhang Zongjing 豫章宗镜. Interwoven with these commentaries and the text of the sutra itself is Kihwa's own sub-commentary. Kihwa also writes a substantial introduction to this piece， in which he makes powerful argument for a balanced approach to religious practice， including both sitting meditation 禅 and scriptural study 教. HPC 7.10-107.