金剛經纂要刊定記 3.81

3.81

信行下。分位也。於十八住中，前十六住是信行地，此當三賢，依信起行故名信行，亦名信解，依信起解故。第十七住是淨心地，此當初地，離分別障親證真如故。第十八住從第二地已去，乃至佛位，通名如來地也。又以諸家明地位或廣或略，廣則五十二位，略則泯之全無。今則均於廣略，去其太甚，說三地五位矣。

"Practice based on faith..." and below divides the stages. Among the eighteen abodes, the first sixteen abodes are the stage of practice based on faith (śraddhācarita-bhūmi). This corresponds to the three [levels of] worthies. Because they give rise to practice based on faith, it is called "practice based on faith"; it is also called "faith-understanding" (adhimukti), because they give rise to understanding based on faith. The seventeenth abode is the stage of the pure mind (śuddhādhyāśaya-bhūmi). This corresponds to the first bhūmi, because one is free from the cognitive obstacles of conceptual discrimination and directly realizes tathatā. The eighteenth abode, from the second bhūmi onward up to the Buddha stage, is generally called the Tathāgata stage. Furthermore, because various authors clarify the stages either extensively or concisely—the extensive being fifty-two stages, the concise utterly obliterating them to nothing—now we balance the extensive and concise, removing the extremes, and expound the three grounds and five stages.