金剛般若經疏論纂要 1.20

1.20

一、信。若兼我聞合釋，則指法之辭也，如是之法我從佛聞。單釋如是者，《智度論》云：「信成就也。」佛法大海，信為能入、智為能度，信者言是事如是、不信者言是事不如是。又，聖人說法但為顯如，唯如為是，故稱如是。又，有、無不二為如，如非有無為是。

First, faith. If explained together with 'I heard', it is an expression indicating the teaching: 'Such a Dharma as this, I heard from the Buddha.' Explaining 'thus' alone, the Mahāprajñāpāramitopadeśa says: 'It is the fulfillment of faith.' In the great sea of the Buddha's Dharma, faith is that by which one enters, and wisdom is that by which one crosses over. One who has faith says 'this matter is thus'; one who lacks faith says 'this matter is not thus'. Furthermore, the Sage expounded the Dharma solely to reveal suchness; only suchness is right, hence it is called 'thus'. Moreover, that existence and nonexistence are non-dual is 'as'; that 'as' is neither existence nor nonexistence is 'is'.