Knowledge of self-realization, even though free from all material affinity, does not look well if devoid of a conception of the Infallible [God]. What, then, is the use of fruitive activities, which are naturally painful from the very beginning and transient by nature, if they are not utilized for the devotional service of the Lord?
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
नैष्कर्म्यमप्यच्युतभाववर्जितं न शोभते ज्ञानमलं निरञ्जनम् । कुतः पुनः शश्वदभद्रमीश्वरे न चार्पितं कर्म यदप्यकारणम्
naiṣkarmyamapyacyutabhāvavarjitaṃ na śobhate jñānamalaṃ nirañjanam | kutaḥ punaḥ śaśvadabhadramīśvare na cārpitaṃ karma yadapyakāraṇam
SB 1.5.12