金剛經纂要刊定記 3.97

3.97

得勝者。以小乘四果勝於四向等故，對劣彰勝也。此即以小況大也。小人尚猶無過，君子豈合有愆。由無慢故方得證果。故經皆言：「我不作是念，我得須陀洹果等。」

"Attaining the superior": because the four fruits of the Hīnayāna are superior to the four directions of practice, superiority is manifested in contrast to inferiority. This uses the small to illustrate the great. If even a petty person has no fault, how could a noble man have an error? It is by being free from conceit that one comes to realize the fruit. Therefore the sūtras all say: "I do not have this thought: 'I have attained the fruit of a stream-enterer,' and so forth."