One verse

Srimad Bhagavatam 4.9.66

4.9.66

वीक्ष्योढवयसं तं च प्रकृतीनां च सम्मतम् । अनुरक्तप्रजं राजा ध्रुवं चक्रे भुव: पतिम् ॥ ६६ ॥

viksyodha-vayasam tam ca prakrtinam ca sammatam anurakta-prajam raja dhruvam cakre bhuvah patim

viksya
after seeing
udha-vayasam
mature in age
tam
Dhruva
ca
and
prakrtinam
by the ministers
ca
also
sammatam
approved of
anurakta
beloved
prajam
by his subjects
raja
the King
dhruvam
Dhruva Maharaja
cakre
made
bhuvah
of the earth
patim
master.

When, after concentration, King Uttanapada saw that Dhruva Maharaja was suitably mature to take charge of the kingdom and that his ministers were agreeable and the citizens were also very fond of him, he enthroned Dhruva as emperor of this plane.