Sunīti, the real mother of Dhruva Mahārāja, embraced the tender body of her son, who was dearer to her than her own life, and thus forgot all material grief, for she was very pleased.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
सुनीतिरस्य जननी प्राणेभ्योऽपि प्रियं सुतम् । उपगुह्य जहावाधिं तदङ्गस्पर्शनिर्वृता
sunītirasya jananī prāṇebhyo'pi priyaṃ sutam | upaguhya jahāvādhiṃ tadaṅgasparśanirvṛtā
SB 4.9.49