O Nārada, because I have caught hold of the lotus feet of the Supreme Personality of Godhead, Hari, with great zeal, whatever I say has never proved to have been false. Nor is the progress of my mind ever deterred. Nor are my senses ever degraded by temporary attachment to matter.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
सोऽहं समाम्नायमयस्तपोमयः प्रजापतीनामभिवन्दितः पतिः । आस्थाय योगं निपुणं समाहितः तं नाध्यगच्छं यत आत्मसम्भवः
so'haṃ samāmnāyamayastapomayaḥ prajāpatīnāmabhivanditaḥ patiḥ | āsthāya yogaṃ nipuṇaṃ samāhitaḥ taṃ nādhyagacchaṃ yata ātmasambhavaḥ
SB 2.6.34