首楞嚴義疏注經 6.444

6.444

一顛迦，即是斷善根者，其大妄語與此罪同。《涅槃．邪正品》云：「若有說言：『我已得成阿耨菩提。何以故？以有佛性故，有佛性者必定得成阿耨菩提。』當知是人犯波羅夷罪。何以故？雖有佛性，以未修習諸善方便，是故未見。以不見故，不得成就阿耨菩提。」故知略不修斷，自稱即是佛者，皆大妄語，犯波羅夷，非佛弟子。

An icchantika is one whose roots of goodness are severed. The offense of great falsehood is identical to this. The Nirvāṇa Sūtra, 'Chapter on the Heterodox and the Correct,' states: 'If anyone says, "I have already accomplished anuttara-bodhi. Why? Because I possess Buddha-nature, and one who possesses Buddha-nature will definitely accomplish anuttara-bodhi," you should know that this person commits a pārājika offense. Why? Although they possess Buddha-nature, because they have not cultivated the various skillful means, they have therefore not seen it. Because they have not seen it, they cannot achieve anuttara-bodhi.' Therefore, we know that those who do not briefly cultivate or sever anything, yet claim themselves to be Buddhas, all commit great falsehood, incur a pārājika, and are not disciples of the Buddha.