Yoga Sūtra Chapter Two verse 42

संतोषातनुत्तमस्सुखलाभः ॥४२॥

saṃtoṣāt-anuttamaḥ sukha-lābhaḥ ||42||

From contentment unsurpassed happiness is attained.

saṃtoṣa - contentmentanuttama - unsurpassedsukha - happiness; comfortable; pleasantnesslābha - attained