俱舍論頌疏論本 1.175

1.175

釋曰：前三句約境明次第，第四句約處明次第。前五境唯現者，前五根境，謂六根中，眼等前五唯取現境，是故先說。第六意根取境不定，意境有四：三世、無為。於此四中，或時取一，或二、三、四，是故後說。

Explanation: The first three lines clarify the order with respect to objects; the fourth line clarifies the order with respect to physical bases. As for 'the objects of the first five are present only': the objects of the first five faculties means that among the six faculties, the first five—the eye and the rest—grasp only present objects; for this reason they are stated first. The sixth, the mental faculty, is unfixed in grasping objects; mental objects are of four kinds: the three times and the unconditioned. Among these four, it sometimes grasps one, or two, three, or four; for this reason it is stated last.