Sankhya Karika Verse 56
Sanskrit Verse
इत्येष प्रकृतिकृतौ महदादिविशेषभूतपर्यन्तः । प्रतिपुरुषविमोक्षार्थं स्वार्थ इव परार्थ आरम्भः ॥ ५६ ॥
Transliteration
ityeṣaḥ prakṛti kṛtaḥ mahadādi viśeṣa bhūta paryantaḥ | prati puruṣa vimokṣārthaṃ svārthe iva parārthe ārambhaḥ ||
Translation
Thus then is this creation beginning with Mahat and ending with specific entities, originated by Prakriti in the interest of another as in her own interest, for the release of each individual Purusa.
Reference: Sankhya Karika

Muni's Play