Mahabharata 9.37.3

वैशंपायन उवाच · vaiśaṃpāyana uvāca

राजन्सप्त सरस्वत्यो याभिर्व्याप्तमिदं जगत्आहूता बलवद्भिर्हि तत्र तत्र सरस्वती

rājansapta sarasvatyo yābhirvyāptamidaṃ jagatāhūtā balavadbhirhi tatra tatra sarasvatī

Our plain-language meaning of this verse is waiting for scholar review.