Thus when all a man’s activities are dedicated to the service of the Lord, those very activities which caused his perpetual bondage become the destroyer of the tree of work.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
एवं नृणां क्रियायोगाः सर्वे संसृतिहेतवः । त एवात्मविनाशाय कल्पन्ते कल्पिताः परे
evaṃ nṛṇāṃ kriyāyogāḥ sarve saṃsṛtihetavaḥ | ta evātmavināśāya kalpante kalpitāḥ pare
SB 1.5.34