成唯識論述記 2.486

2.486

述曰：汝宗無為應非無為，是無常法；許有用故；如眼、耳等。下結句文許通於上，此非彼宗，設義破也，故不可執無為實有。此下即是第三、量破。

The Commentary states: The unconditioned of your school should not be unconditioned, but an impermanent dharma; because you grant that it has functional efficacy; like the eye, ear, and so forth. The concluding sentence below also applies to the above: this is not their school's position, but a refutation based on a hypothetical position; therefore, one must not grasp the unconditioned as real. What follows below is the third: refutation by syllogism.