Sankhya Karika Verse 17
Sanskrit Verse
संघातपरार्थत्वात् त्रिगुणादिविपर्ययादधिष्ठानात् । पुरुषोऽस्ति भोक्तृभावात् कैवल्यार्थं प्रवृत्तेश्च ॥ १७ ॥
Transliteration
saṅghāta-para-arthatvāt tri-guṇādi-viparyāt-adhiṣṭhānāt | puruṣaḥ asti bhoktṛbhāvāt kaivalya-arthaṃ pravṛtteḥ ca ||
Translation
Purusa exists : since the aggregate must be for the sake of the non-aggregate ; since there must exist an entity in which the properties of being constituted by the three Gunas and the rest do not appear ; since there must be a superintendent ; since there must be an experiencer ; and since activity is for the sake of abstraction.
Reference: Sankhya Karika

Muni's Play