My dear Lord, O Supreme Soul, for those whose minds are attached to sense gratification, and especially for those bereft of devotion unto You, such renunciation of material enjoyment is most difficult to perform. That is my opinion.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
त्यागोऽयं दुष्करो भूमन् कामानां विषयात्मभिः । सुतरां त्वयि सर्वात्मन्नभक्तैरिति मे मतिः
tyāgo'yaṃ duṣkaro bhūman kāmānāṃ viṣayātmabhiḥ | sutarāṃ tvayi sarvātmannabhaktairiti me matiḥ
SB 11.7.15