俱舍論疏 17.174

17.174

論「彼有無間至故名沙門」，此說如無間道名沙門，由此道有滅惡故，與滅惡法合，名為沙門。此業有無間果，及有無間法合，名為無間。若人名無間，由有無間業，無間必入地獄。有此無間業，與此無間業合，名無間者。

On the Śāstra's statement, 'It possesses the immediate... hence is called a śramaṇa': This explains that just as the uninterrupted path (ānantaryamārga) is called a śramaṇa because this path involves the cessation of evil and, being united with the dharma that destroys evil, is termed a śramaṇa; so this karma possesses an immediate fruit, and being united with the immediate dharma, is called immediate. If a person is called 'immediate,' it is because having this immediate karma, immediately [after death] they must enter hell. Possessing this immediate karma and being united with this immediate karma, they are called an 'immediate one.'