Skandapurana 16.11.50

16.11.50

athavā tena deveśi prabhāsamiti kīrtyate ..
prakṛṣṭā bhāratī brāhmī viproktā śrūyate'dhvani ..
sadā yatra mahādevi prabhāsaṃ tena kīrtitam .. 7.1.11.50 ..

or because of that, O goddess of the gods, it is celebrated as Prabhāsa. / Because the excellent speech of Brahmā, uttered by brahmins, is constantly heard on the path / there, O great goddess, it is proclaimed as Prabhāsa.