Mahabharata 12.332.24

वैशंपायन उवाच · vaiśaṃpāyana uvāca

एतच्छ्रुत्वा तयोर्वाक्यं तपस्युग्रेऽभ्यवर्ततनारदः प्राञ्जलिर्भूत्वा नारायणपरायणः

etacchrutvā tayorvākyaṃ tapasyugre'bhyavartatanāradaḥ prāñjalirbhūtvā nārāyaṇaparāyaṇaḥ

Our plain-language meaning of this verse is waiting for scholar review.