Śrīmad-Bhāgavatam · Text 10.28.2
Who is speaking and story frame
तं गृहीत्वानयद् भृत्यो वरुणस्यासुरोऽन्तिकम् । अवज्ञायासुरीं वेलां प्रविष्टमुदकं निशि ॥ २ ॥
taṁ gṛhītvānayad bhṛtyo
varuṇasyāsuro ’ntikam
avajñāyāsurīṁ velāṁ
praviṣṭam udakaṁ niśi
Because Nanda Mahārāja entered the water in the dark of night, disregarding that the time was inauspicious, a demoniac servant of Varuṇa seized him and brought him to his master.
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.