俱舍論記 2.35

2.35

Regarding the passage: "There, it may well be that […] should exist apart from the faculty," the author of the treatise challenges again. In that Rūpadhātu, it may well be that the physical base of the male faculty does not exist, because it has no use in that realm. Supposing that the male physical base had a use in that realm, it should exist apart from the faculty. Because it has no use, it does not exist in that realm. As for the physical bases of the nose and tongue, because they have a use, they should exist apart from the faculties; what use are the two faculties? Since the faculties have no use, the reason remains established.