Vṛṣṇivaṃśa–Anukīrtana (Enumeration of the Vṛṣṇi Lineage) — Questions on Viṣṇu’s Human Descent
व्रतं चर मयोद्दिष्टं ब्रह्मचारी समाहितः / पूर्मं वर्षसहस्रं वै कुण्डधूममवाक्शिराः
vrataṃ cara mayoddiṣṭaṃ brahmacārī samāhitaḥ / pūrmaṃ varṣasahasraṃ vai kuṇḍadhūmamavākśirāḥ
Practice the vow I have prescribed; be a brahmacārin, steady and composed. First, for a thousand years, remain with head bowed amid the smoke of the sacred kuṇḍa.