One verse

Srimad Bhagavatam 6.16.28

6.16.28

तत: स सप्तरात्रान्ते विद्यया धार्यमाणया । विद्याधराधिपत्यं च लेभेऽप्रतिहतं नृप ॥ २८ ॥

tatah sa sapta-ratrante vidyaya dharyamanaya vidyadharadhipatyam ca lebhe ’pratihatam nrpa

tatah
from this
sah
he
sapta-ratra-ante
at the end of seven nights
vidyaya
by the prayers
dharyamanaya
being carefully practiced
vidyadhara-adhipatyam
mastership of the Vidyadharas (as an intermediate result)
ca
also
lebhe
achieved
apratihatam
undeviated from the instructions of the spiritual master
nrpa
O King Pariksit.

O King Pariksit, after only one week of repeatedly practicing the mantra received from the spiritual master, Citraketu achieved the rule of the plane of the Vidyadharas as an intermediate product of his spiritual advancement in knowledge.