Skandapurana 6.3.5.15

6.3.5.15

śrīmārkaṇḍeya uvāca -
śṛṇvantu ṛṣayaḥ sarve tvaṃ ca tāta yudhiṣṭhira .
purāṇaṃ narmadāyāṃ tu kathitaṃ ca triśūlinā .. 5.15 ..

The venerable Mārkaṇḍeya said:
Let all the seers hear, and you too, dear Yudhiṣṭhira:
the ancient account concerning the Narmadā was spoken by the trident-wielding Lord;