One verse

Srimad Bhagavatam 4.12.43

4.12.43

य: क्षत्रबन्धुर्भुवि तस्याधिरूढ- मन्वारुरुक्षेदपि वर्षपूगै: । प्रसाद्य वैकुण्ठमवाप तत्पदम् ॥ ४३ ॥ षट्पञ्चवर्षो यदहोभिरल्पै:

yah ksatra-bandhur bhuvi tasyadhirudham anv aruruksed api varsa-pugaih sat-panca-varso yad ahobhir alpaih prasadya vaikuntham avapa tat-padam

yah
one who
ksatra-bandhuh
the son of a ksatriya
bhuvi
on the earth
tasya
of Dhruva
adhirudham
the exalted position
anu
after
arurukset
can aspire to attain
api
even
varsa-pugaih
after many years
sat-panca-varsah
five or six years old
yat
which
ahobhih alpaih
after a few days
prasadya
after pleasing
vaikuntham
the Lord
avapa
attained
tat-padam
His abode.

Dhruva Maharaja attained an exalted position at the age of only five or six years, after undergoing austerity for six months. Alas, a great ksatriya cannot achieve such a position even after undergoing austerities for many, many years.