金剛經纂要刊定記 6.4

6.4

諸佛下。順他以立理也。既無菩薩即無此事，無佛不成菩提，即是生不入涅槃，但約凡聖分於因果故。下結疑之處則合而言之。

"All Buddhas..." and so forth establishes the principle in accordance with the opponent. Since there is no bodhisattva, then there is no such matter: without a Buddha, bodhi is not attained, which means sentient beings do not enter nirvāṇa; this merely distinguishes cause and fruit in terms of ordinary beings and nobles. Below, where the doubt is concluded, they are stated together.