Śrīmad-Bhāgavatam · Text 11.17.31
Who is speaking and story frame
यद्यसौ छन्दसां लोकमारोक्ष्यन् ब्रह्मविष्टपम् ।
गुरवे विन्यसेद् देहं स्वाध्यायार्थं बृहद्व्रत: ॥ ३१ ॥
yady asau chandasāṁ lokam
ārokṣyan brahma-viṣṭapam
gurave vinyased dehaṁ
svādhyāyārthaṁ bṛhad-vrataḥ
If the brahmacārī student desires to ascend to the Maharloka or Brahmaloka planets, then he should completely surrender his activities to the spiritual master and, observing the powerful vow of perpetual celibacy, dedicate himself to superior Vedic studies.
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.