Maitreya answered: Dhruva Mahārāja’s heart, which was pierced by the arrows of the harsh words of his stepmother, was greatly aggrieved, and thus when he fixed upon his goal of life he did not forget her misbehavior. He did not demand actual liberation from this material world, but at the end of his devotional service, when the Supreme Personality of Godhead appeared before him, he was simply ashamed of the material demands he had in his mind.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
मैत्रेय उवाच । मातुः सपत्न्या वाग्बाणैर्हृदि विद्धस्तु तान् स्मरन् । नैच्छन्मुक्तिपतेर्मुक्तिं तस्मात्तापमुपेयिवान्
maitreya uvāca | mātuḥ sapatnyā vāgbāṇairhṛdi viddhastu tān smaran | naicchanmuktipatermuktiṃ tasmāttāpamupeyivān
SB 4.9.29