While the child, Dhruva Mahārāja, was trying to get on the lap of his father, Suruci, his stepmother, became very envious of the child, and with great pride she began to speak so as to be heard by the King himself.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तथा चिकीर्षमाणं तं सपत्न्यास्तनयं ध्रुवम् । सुरुचिः शृण्वतो राज्ञः सेर्ष्यमाहातिगर्विता
tathā cikīrṣamāṇaṃ taṃ sapatnyāstanayaṃ dhruvam | suruciḥ śṛṇvato rājñaḥ serṣyamāhātigarvitā
SB 4.8.10