俱舍論記 13.126

13.126

「頌曰至不應理故」者，答。此之無表能造大種，異於表業所依大種。所以者何？從一具和合四大種因，有細無表果、有麁表果，不應理故。

On "The verse states ... because it is unreasonable": This is the answer. The great elements that are capable of producing this non-revelation are different from the great elements on which revealing karma relies. Why is this? Because from a single harmonious cause of the four great elements, having a subtle non-revelation fruit and a coarse revelation fruit is unreasonable.