Skandapurana 16.11.47

16.11.47

athavā tena lokeṣu prabhāsamiti kīrtyate ..
prathamaṃ bhāsate devi sarveṣāṃ bhuvi tejasām ..
tīrthānāmāditīrthaṃ yatprabhāsaṃ tena kīrttitam .. ... 47 ..

or because of that, it is celebrated among the worlds as Prabhāsa. / Because it shines first on earth among all radiant lights, O goddess, / and is the first tīrtha among tīrthas, for that reason it is celebrated as Prabhāsa.