Revākhaṇḍa ascribed to the Vāyupurāṇa (RKV) 23.5

23.5

samaṃ jalaṃ dharmavido vadanti sārasvataṃ gāṅgamiti prabuddhāḥ /
tasyopariṣṭāt pravadanti tajjñā revājalaṃ nātra vicāraṇāsti //

Those who know dharma say the waters of Sarasvatī and Gaṅgā are equal; the enlightened say this. / Those who know that matter proclaim the water of Revā to be superior to that; there is no doubt about this.