The Vedanta Sutras, commentary by Sankaracharya (SBE34), tr. by George Thibaut  at sacred-texts.com
2. And on account of the non-perception of the
others (i.e. the effects of the pradhâna, according to the Sânkhya system).
The principles different from the pradhâna, but to be viewed as its modifications which the (Sânkhya) Smriti assumes, as, for instance, the great principle, are perceived neither in the Veda nor in ordinary experience. Now things of the nature of the elements and the sense organs, which are well known from the Veda, as well as from experience, may be referred to in Smriti; but with regard to things which, like Kapila's great principle, are known neither from the Veda nor from experience--no more than, for instance, the objects of a sixth sense--Smriti is altogether impossible. That some scriptural passages which apparently refer to such things as the great principle have in reality quite a different meaning has already been shown under I, 4, 1. But if that part of Smriti which is concerned with the effects (i.e. the great principle, and so on) is without authority, the part which refers to the cause (the pradhâna) will be so likewise. This is what the Sûtra means to say.--We have thus established a second reason, proving that the circumstance of there being no room left for certain Smritis does not constitute a valid objection to our doctrine.--The weakness of the trust in reasoning (apparently favouring the Sânkhya doctrine) will be shown later on under II, 1, 4 ff.