Bhagavata Purana 4.12.8
Srimad Bhagavatam · 12 · Verse 8
Sanskrit Original
मैत्रेय उवाच स राजराजेन वराय चोदितो ध्रुवो महाभागवतो महामति: । हरौ स वव्रेऽचलितां स्मृतिं यया तरत्ययत्नेन दुरत्ययं तम: ॥ ८ ॥
maitreya uvāca sa rāja-rājena varāya codito dhruvo mahā-bhāgavato mahā-matiḥ harau sa vavre ’calitāṁ smṛtiṁ yayā taraty ayatnena duratyayaṁ tamaḥ
The great sage Maitreya continued: My dear Vidura, when thus asked to accept a benediction from Kuvera the Yakṣarāja [King of the Yakṣas], Dhruva Mahārāja, that most elevated pure devotee, who was an intelligent and thoughtful king, begged that he might have unflinching faith in and remembrance of the Supreme Personality of Godhead, for thus a person can cross over the ocean of nescience very easily, although it is very difficult for others to cross.