金剛般若波羅蜜經註解 1.178

1.178

初日分者，寅、卯、辰時也；中日分者，巳、午、未時也；後日分者，申、酉、戌時也。如是一日三時捨無量身，歷無量劫而行布施。世間固無此事，然佛設此喻者，以況聞經生信福德之勝，何況書、持、誦、說者耶？

"In the morning" refers to the hours of yin, mao, and chen; "at midday" refers to the hours of si, wu, and wei; "in the evening" refers to the hours of shen, you, and xu. To thus abandon immeasurable bodies during the three periods of a single day, practicing giving across immeasurable kalpas—such a thing certainly does not exist in the world. Yet the Buddha sets forth this metaphor to illustrate how the blessing and virtue of hearing the sūtra and generating faith surpasses it—how much more so for one who copies, upholds, recites, and explains it?