金剛般若經依天親菩薩論贊略釋秦本義記卷上 1.146

1.146

經。佛告須菩提如是如是若復有人得聞是經不驚不怖不畏當知是人甚為希有　第三述讚也。言如是如是者。謂上所說正是其義故名如是如是。即印可之詞也。得聞是經不驚不怖不畏者。謂成就信解也。論云驚者謂非處生懼。是故名驚。以可呵故。如非道行故。怖者心體怖故已起不能斷。疑心者畏者一向怖故。其心必竟驚怖墮故。離此三種聞經信解故名希有。

Sūtra: The Buddha said to Subhūti, 'So it is, so it is! If there is a person who hears this sūtra and is not alarmed, not terrified, and not afraid, you should know that this person is exceedingly rare. Third, this recounts and praises. The words 'So it is, so it is' mean that what was spoken above is precisely its meaning, hence the words 'So it is, so it is'; these are words of approval. 'Hears this sūtra and is not alarmed, not terrified, and not afraid' refers to accomplishing faithful understanding. The treatise says: 'Alarmed' means generating fear where there is no cause for fear, and therefore it is called alarmed, because it is blameworthy, like walking on a non-path. 'Terrified' means the mind-substance itself is terrified, so having arisen it cannot be severed. One who has a doubting mind is 'afraid' because they are entirely terrified, for their mind will ultimately fall away in alarm and terror. Being free of these three kinds, hearing the sūtra with faithful understanding, is therefore called rare.