Skandapurana 5.9.9

5.9.9

asti parvatamukhyo'tra nāmnā khyāto himālayaḥ ..
tasya putratrayaṃ jātaṃ tacca śakra śṛṇuṣva me .. 9 ..

There is a foremost mountain here, known by the name Himālaya;
three sons were born to him; listen to that from me, O Śakra! 9”