Samkhya Karika 16

कारणमस्त्यव्यक्तं प्रवर्तते त्रिगुणतः समुदयाच्च ।
परिणामतः सलिलवत् प्रतिप्रतिगुणाश्रयविशेषात् ॥ १६ ॥

kāraṇamastyavyaktaṁ pravartate triguṇataḥ samudayācca ।
pariṇāmataḥ salilavat pratipratiguṇāśrayaviśeṣāt ॥ 16 ॥

Kāraṇam=cause; asti=is, exists; avyaktaṁ=unmanifest (Mula Prakriti); pravartate=functions; triguṇataḥ=in respect of the three gunas (sattva, rajas, tamas); samudayāt=collectively; ca=and; pariṇāmataḥ=through modification; salilavat=like water; pratiprati=each (of the gunas); guṇāśraya=dominance of the guna; viśeṣāt=from the effects;

(cont. from previous verse) 6) its operation through the three gunas by combination and modification, like water, through differences arising from diverse nature of the several receptacles of the gunas.