Srimad Bhagavatam Canto 04, Chapter 12, Text 38

SB 4.12.38

ity uttanapadah putro
dhruvah krsna-parayanah
abhut trayanam lokanam
cuda-manir ivamalah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
In this way, the fully Krsna conscious Dhruva Maharaja, the exalted son of Maharaja Uttanapada, attained the summit of the three statuses of planetary systems.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The exact Sanskrit terminology for Krsna consciousness is here mentioned: krsna-parayanah. Parayana means “going forward.” Anyone who is going forward to the goal of Krsna is called krsna-parayana, or fully Krsna conscious. The example of Dhruva Maharaja indicates that every Krsna conscious person can expect to reach the topmost summit of all three planetary systems within the universe. A Krsna conscious person can occupy an exalted position beyond the imagination of any ambitious materialist.
Srimad Bhagavatam Canto 04, Chapter 12, Text 37
Srimad Bhagavatam Canto 04, Chapter 12, Text 39