法苑珠林 34.20

34.20

又分別功德論云。第一念佛何事。佛身金剛無有諸漏。若行時足離地四寸。千輻相文跡現於地。足下諸蟲七日安隱。若其命終皆得生天。昔有一惡比丘。本是外道。假服誹謗逐如來行。自殺飛蟲著佛跡處。言佛蹈殺。然蟲雖死遇佛跡處尋還得活。若入城邑足蹈門閾。天地大動。百種音樂不鼓自鳴。諸聾盲瘂百病自除。覩佛相好隨行得度。功德所濟不可稱計。總會萬行運載為先。所謂念佛。其義如此。

Furthermore, the Treatise on Distinguishing Merits states: What does the first, mindfulness of the Buddha, concern? The Buddha's body is adamantine, free of all outflows. When he walks, his feet are four inches above the ground, and the marks of a thousand-spoked wheel appear upon the earth. The insects beneath his feet are at peace for seven days; if they die, they are all reborn in the heavens. Formerly, there was an evil monk who was originally a non-Buddhist. Wearing the monastic robes under false pretenses to slander the Dharma, he followed behind the Tathāgata, killed a flying insect with his own hand, and placed it where the Buddha had left a footprint, claiming that the Buddha had stepped on and killed it. Yet although the insect was dead, upon encountering the Buddha's footprint it immediately returned to life. When he enters a city or village and his foot touches the threshold, the earth shakes mightily, a hundred kinds of musical instruments sound without being struck, the deaf, blind, and mute, and those with a hundred diseases are spontaneously healed; seeing the Buddha's physical marks, people attain deliverance according with his conduct. The aid brought by his merit cannot be calculated. Bringing together all practices, conveying [beings across] is foremost. What is called mindfulness of the Buddha has such meaning as this.