佛說觀佛三昧海經 3.54

3.54

是時世尊披僧祇支示胸德字，令比丘讀誦德字已，知佛功德智慧莊嚴，於萬字印中，說佛八萬四千諸功德行。比丘見已，讚歎佛言：「世尊甚奇特，但於胸字說無量義，何況佛心所有功德？」說是語已向佛懺悔，五體投地如太山崩，悲號雨淚對佛啼哭。

At that time, the Bhagavat opened his saṃkakṣikā and revealed the emblem of virtue on his chest. After causing the monks to read and recite the emblem of virtue, they came to know the Buddha's adornment of merit and wisdom; and from within the svastika emblem, he expounded the eighty-four thousand meritorious practices of the Buddha. Having seen this, the monks praised the Buddha, saying: "The Bhagavat is most extraordinary! He expounds immeasurable meanings merely from the emblem on his chest, so how much more [immeasurable] must be all the merits of the Buddha's mind?" Having spoken these words, they repented before the Buddha, throwing their five limbs to the ground like the collapse of Mount Tai, wailing, weeping tears like rain, and crying before the Buddha.