Skandapurana 16.8.1

16.8.1

.. devyuvāca .. ..
punaḥ kathaya deveśa māhātmyaṃ lokaśaṃkara ..
śrīsomeśvaradevasya sarvapātakanāśanam..
brahmaviṣṇvīśadaivatyaṃ tathātra tritayaṃ vada .. ... 1 ..

The goddess said: / Speak again, O Lord of gods, O bringer of peace to the world, the māhātmya / of the glorious lord Someśvara, which destroys all sins; / and tell also of the triad here that has Brahmā, Viṣṇu, and Īśa as presiding deities.