佛說觀佛三昧海經 2.42

2.42

「設復有人，但聞白毛心不驚疑，歡喜信受，此人亦除却八十億劫生死之罪。若諸比丘比丘尼、優婆塞優婆夷，犯四根本罪，不如等罪及五逆罪，除謗方等，如是眾人若欲懺悔，晝夜六時身心不懈。譬如人在深草中行，四面火起，猛風吹來欲燒其身，此人作念：『若火燒我，未死之間支節解散，我當云何得滅此火？若不設計命必不濟，誰有智者多諸方便能救我命？設命全濟於彼人所無所悋惜？』作是思惟已，如太山崩，五體投地號泣雨淚，合掌向佛，讚歎如來種種德行。作是讚已，誦懺悔法，繫念在前，念佛眉間白毫相光，一日至七日，前四種罪可得輕微，三七日時罪相漸滅，七七日後，然後羯磨，事在他經。若比丘，犯不如罪，觀白毫光闇黑不現，應當入塔觀像眉間，一日至三日，合掌啼泣一心諦觀，然後入僧說前罪事，此名滅罪。前五種罪，念白毫光經八百日，然後復有別羯磨法。」

“Furthermore, suppose a person merely hears of the white hair and their mind is neither alarmed nor doubtful, but rejoices, believes, and accepts it; this person will also eradicate the sins of birth and death spanning eight billion kalpas. If bhikṣus, bhikṣuṇīs, upāsakas, or upāsikās commit the four root offenses, offenses such as minor infractions, or the five deeds of immediate retribution, excepting slander of the vaipulya sūtras—if such persons wish to repent, then during the six periods of the day and night they must be tireless in body and mind. It is like a person walking through deep grass, when fire erupts on all four sides and a fierce wind blows, about to consume his body; that person thinks: ‘If the fire burns me, before I die my limbs will be severed and destroyed. How can I extinguish this fire? If I do not devise a plan, my life will certainly not be saved. Who is the wise person of many expedients that can save my life? If my life is fully preserved, I will begrudge that person nothing!’ Having reflected thus, like a great mountain collapsing, he throws his five limbs to the ground, weeping and shedding tears like rain, joins his palms toward the Buddha, and praises the Tathāgata’s various virtues. Having made this praise, he recites the repentance liturgy, binds his mindfulness before him, and contemplates the light of the white ūrṇā mark between the Buddha’s brows. From one day to seven days, the former four kinds of offenses can be alleviated; at twenty-one days, the marks of the offenses will gradually vanish; and after forty-nine days, the legal act (karman) may then be performed—this matter is found in other sūtras. If a bhikṣu commits a minor infraction and, when contemplating the light of the white ūrṇā, sees it dark, black, and non-manifest, he should enter a stūpa to contemplate between the brows of an image, for one to three days, joining his palms, weeping, and single-mindedly and attentively contemplating, and then enter the saṅgha to declare his former offenses; this is called eradicating offenses. For the former five kinds of offenses, one contemplates the light of the white ūrṇā for eight hundred days, and then there is another separate karman procedure.”