金剛經纂要刊定記 2.252

2.252

"Frightening Māra": this means that on the day [one] first leaves home, the sky-faring yakṣas call out up to Māra's palace, and hearing it, [Māra] is frightened. This is because when a single person leaves home, [they] progressively convert and save others, thereby diminishing [Māra's] retinue. Moreover, a person who leaves home frightens Māra three times from the cause to the fruit: when leaving home, when giving rise to the mind of bodhi, and when attaining perfect enlightenment. At the first two, [Māra] is merely frightened, but at the last, he takes up weapons and is destroyed by the Buddha, none failing to be subdued.