CC Antya 4.59
na sāṅkhyaṁ dharma uddhava
na svādhyāyas tapas tyāgo
yathā bhaktir mamorjitā
na — never; sādhayati — causes to remain satisfied; mām — Me; yogaḥ — the process of control; na — nor; sāṅkhyam — the process of gaining philosophical knowledge about the Absolute Truth; dharmaḥ — such an occupation; uddhava — My dear Uddhava; na — nor; svādhyāyaḥ — study of the Vedas; tapaḥ — austerities; tyāgaḥ — renunciation, acceptance of sannyāsa, or charity; yathā — as much as; bhaktiḥ — devotional service; mama — unto Me; ūrjitā — developed.
“[The Supreme Personality of Godhead, Kṛṣṇa, said:] ‘My dear Uddhava, neither through aṣṭāṅga-yoga [the mystic yoga system for controlling the senses], nor through impersonal monism or an analytical study of the Absolute Truth, nor through study of the Vedas, nor through austerities, charity or acceptance of sannyāsa can one satisfy Me as much as by developing unalloyed devotional service unto Me.’
This verse is from Śrīmad-Bhāgavatam (11.14.20).