Shiva Purana

siva.sh/siva-purana/saturda-samhita/14/22

महेन्द्रमुख्या गीर्वाणा नागाः पातालवासिनः ।। रत्नान्यादाय बहुशस्ससरित्का महाब्धयः ।। २२।।

sanskrit

Mahendra and other gods, the Nāgas residing in the nether regions came there. Taking gems with them many great oceans and rivers came there.

english translation

mahendramukhyA gIrvANA nAgAH pAtAlavAsinaH || ratnAnyAdAya bahuzassasaritkA mahAbdhayaH || 22||

hk transliteration by Sanscript