Bhagavad Gita 2.39

एषा तेऽभिहिता सांख्ये बुद्धिर्योगे त्विमां शृणु |
बुद्ध्या युक्तो यया पार्थ कर्म बंधं प्रहास्यसि

Translation

Hitherto, I have explained to you Sānkhya Yog, or analytic knowledge regarding the nature of the soul. Now listen, O Parth, as I reveal Buddhi Yog, or the Yog of Intellect. When you work with such understanding, you will be freed from the bondage of karma.