Chapter 18 · verse 36 · gita.yoga.org
Bhagavad Gita 18.36
सुखं त्विदानीं त्रिविधं शृणु मे भरतर्षभ।अभ्यासाद्रमते यत्र दुःखान्तं च निगच्छति
And now, O Arjuna, hear from Me of the threefold pleasure, in which one rejoices through practice and surely comes to the end of pain.