Upaniṣads · Chāndogya 7.22

Chāndogya 7.22.1

यदा वै सुखं लभतेऽथ करोति नासुखं लब्ध्वा करोति सुखमेव लब्ध्वा करोति सुखं त्वेव विजिज्ञासितव्यमिति । सुखं भगवो विजिज्ञास इति ॥ ७.२२.१ ॥

When one obtains happiness, then one acts; having obtained unhappiness, one does not act; having obtained happiness, one indeed acts. Happiness, indeed, is to be inquired into. Venerable sir, I wish to inquire into happiness.