Shiva Purana

siva.sh/siva-purana/kotirudra-samhita/8/18

वरुणः सरितां नाथो गंगादिसरिता गणैः ।। महाबलं च सेवन्ते पश्चिमद्वारमाश्रिताः।। १८।।

sanskrit

Varuṇa, the lord of all rivers, along with the rivers Gaṅgā etc. resort to the western gate and serve Mahābala.

english translation

varuNaH saritAM nAtho gaMgAdisaritA gaNaiH || mahAbalaM ca sevante pazcimadvAramAzritAH|| 18||

hk transliteration by Sanscript