Bhagwad Gita
Chapter 2, Verse 39
एषा तेऽभिहिता सांख्ये बुद्धिर्योगे त्विमां श्रृणु।
बुद्ध्यायुक्तो यया पार्थ कर्मबन्धं प्रहास्यसि।।2.39।।
Thus far I have declared to you the analytical knowledge of sankhya philosophy. Now listen to the knowledge of yoga whereby one works without fruitive result. O son of Prtha, when you act by such intelligence, you can free yourself from the bondage of works.