成唯識論述記 2.148

2.148

述曰：汝此表色，亦非是顯及與香、味，無表示故，如觸應知。復有香積世界之香，雖有表示，即非此土，亦非彼許，此以音聲為佛事故，然彼不許香是表故。第二解云：又彼非表，但聞香時而自悟道，豈是由香表有善惡？此如見佛顯色即念佛等，觸物知善惡，豈以顯等為表也？

The Commentary states: This manifest form of yours is also not visible color, nor smell or taste, because it lacks indication, as should be understood by analogy with tangible objects. Furthermore, although the fragrance of the world of the Accumulation of Fragrance (Gandhahastin / Sarvagandhasugandha) has indication, it does not belong to this world, nor is it accepted by them, for here sound is used to perform the Buddha's work, whereas they do not accept fragrance as manifestation. A second explanation says: Moreover, that is not manifestation; it is merely that upon smelling the fragrance one awakens to the Path by oneself—how could it be that fragrance indicates good or evil? This is like seeing the Buddha's visible color and thereupon recollecting the Buddha, or touching an object and knowing good and evil; how could visible color and so forth be considered manifestation?