Verses on Sāṃkhya 7.3

7.3

atra pradhānapuruṣāv atīndriyau tayoḥ sāmānyatodṛṣṭād anumānāt siddhiḥ | yasmān mahadādi liṅgaṃ triguṇaṃ dṛṣṭvā kāryaṃ tatkāraṇam adṛṣṭam apy asti triguṇaṃ ceti sādhyate pradhānam | na hy asataḥ sadutpattiḥ syād iti | na ca kāraṇāsadṛśaṃ kāryaṃ syād iti | vyaktaṃ tu pratyakṣeṇaiva sādhitam iti tadarthe na prayatnaḥ | yasmāj jaḍam api pradhānaṃ prasūtikriyāyāṃ pravartate tasmād asti lohasya calanakriyāśaktihetucumbakavad avaśyaṃ puruṣa iti jñasiddhiḥ //

Here, primordial matter and spirit are supersensible; their establishment is from inference seen through commonality. Because, seeing the mark [consisting of] the intellect and the rest, which possesses the three constituents and is an effect, primordial matter, which is its cause and also possesses the three constituents, is established to exist even though unseen. For the existent cannot arise from the non-existent, nor can an effect be unlike its cause. The manifest, however, is established by perception alone; therefore no effort is made for its sake. Because primordial matter, even though insentient, proceeds into the activity of production, therefore there must necessarily exist spirit, like a magnet which is the cause of the power of movement in iron; thus the knower is established. //