Bhagavad Gita 13.22

पुरुषः प्रकृतिस्थो हि भुङक्ते प्रकृतिजान्गुणान् |
कारणं गुणसङ्गोऽस्य सदसद्योनिजन्मसु

Translation

When the puruṣh (individual soul) seated in prakṛiti (the material energy) desires to enjoy the three guṇas, attachment to them becomes the cause of its birth in superior and inferior wombs.