大般若波羅蜜多經般若理趣分述讚 3.75

3.75

讚曰：由在因中具行三業金剛智印，得果之時能得最上妙身語心，謂如金剛，不為耶友所動、不為生死所壞。此中意說別行三業殊勝之因別得三果，具行三業所有勝因總得一果。三業堅實，猶如金剛不可動壞。

The Commentary says: Because in the causal stage one fully practices the adamantine wisdom-seal of the three karmas, at the time of attaining the fruit one can attain the supreme, wondrous body, speech, and mind—that is, like an adamantine diamond, not shaken by corrupt companions and not destroyed by cyclic existence. The meaning here is that separately practicing the superior causes of the three karmas separately yields three fruits, while fully practicing all superior causes of the three karmas collectively yields a single fruit. The three karmas are solid and firm, like an adamantine diamond that cannot be shaken or destroyed.