Then Dhruva Mahārāja, the foremost of all nobles, first of all offered his obeisances at the feet of his father and was honored by his father with various questions. He then bowed his head at the feet of his two mothers.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
अभिवन्द्य पितुः पादावाशीर्भिश्चाभिमन्त्रितः । ननाम मातरौ शीर्ष्णा सत्कृतः सज्जनाग्रणीः
abhivandya pituḥ pādāvāśīrbhiścābhimantritaḥ | nanāma mātarau śīrṣṇā satkṛtaḥ sajjanāgraṇīḥ
SB 4.9.45