Śrīmad-Bhāgavatam · Text 11.28.43
Who is speaking and story frame
योगं निषेवतो नित्यं कायश्चेत् कल्पतामियात् ।
तच्छ्रद्दध्यान्न मतिमान्योगमुत्सृज्य मत्पर: ॥ ४३ ॥
yogaṁ niṣevato nityaṁ
kāyaś cet kalpatām iyāt
tac chraddadhyān na matimān
yogam utsṛjya mat-paraḥ
Although the physical body may be improved by various processes of yoga, an intelligent person who has dedicated his life to Me does not place his faith in the prospect of perfecting his physical body through yoga, and in fact he gives up such procedures.
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.