CC Antya-lila 04.059 - SB 11.14.20
Srimad-Bhagavatam
SB Cantos 10.14 to 12 (Translations Only)
SB 11.14.20, Translation:
My dear Uddhava, the unalloyed devotional service rendered to Me by My devotees brings Me under their control. I cannot be thus controlled by those engaged in mystic yoga, Sāṅkhya philosophy, pious work, Vedic study, austerity or renunciation.
Sri Caitanya-caritamrta
CC Antya-lila
CC Antya 4.59, Translation and Purport:
“(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).