Śrīmad-Bhāgavatam · Text 11.16.44
Who is speaking and story frame
तस्माद्वचोमन:प्राणान् नियच्छेन्मत्परायण: ।
मद्भक्तियुक्तया बुद्ध्या तत: परिसमाप्यते ॥ ४४ ॥
tasmād vaco manaḥ prāṇān
niyacchen mat-parāyaṇaḥ
mad-bhakti-yuktayā buddhyā
tataḥ parisamāpyate
Being surrendered to Me, one should control the speech, mind and life air, and then through loving devotional intelligence one will completely fulfill the mission of life.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.