Chapter 14 · verse 5 · gita.yoga.org

Bhagavad Gita 14.5

सत्त्वं रजस्तम इति गुणाः प्रकृतिसंभवाः।निबध्नन्ति महाबाहो देहे देहिनमव्ययम्

These qualities, O Arjuna, born of Nature, bind fast in the body of the embodied, the indestructible: purity, passion, and inertia.