金剛三昧經論 3.77

3.77

論曰：此下第二入智差別，先問、後答。問中有二：先領前說、後問所疑。如苗成實者，如似穀苗成穗實時。無能入者，無所入處，入如來藏當知亦爾。苗喻本利，實喻得本，入時平等，無所入處故。

The commentary says: From here down is the second [part], the distinctions in entering cognition; first is the question, and then the reply. In the question there are two: first, understanding what was previously stated; second, asking what is doubted. “Like a sprout becoming grain” means just like when grain sprouts form ears of grain. There is no one who can enter, and there is no place to be entered; one should know that entering the tathāgatagarbha is also like this. The sprout is a simile for original benefit; the grain is a simile for attaining the origin. Because when entering there is equality, there is no place of entry.