Skandapurana 5.129.56

5.129.56

tataḥ siṃdhvabhidhānā sā paścimaṃ sāgaraṃ gatā..
śatāni nava saṃgṛhya nadīnāṃ parameśvari ..56..

Then, under the name Sindhu, it went to the western ocean, / gathering nine hundred rivers, O Parameśvarī;