Sankhya Karika Verse 20
Sanskrit Verse
तस्मात्तत्संयोगादचेतनं चेतनावदिव लिङ्गम् । गुणकर्तृत्वे च तथा कर्तेव भवत्युदासीनः ॥ २० ॥
Transliteration
tasmāt-tat-saṃyogāt-acetanaṃ cetanāvat-iva liṅgam | guṇa-kartṛtve-api tathā karteva bhavati-udāsīnaḥ ||
Translation
Therefore (the inference that intelligence and agency belong to one and the same subject is a mistake.) Through conjunction with Purusa, the non-intelligent Effect appears as if it were intelligent, and although agency is of the Gunas, the indifferent (Purusa) appears, in the same way, as if he were the agent.
Reference: Sankhya Karika

Muni's Play