Skanda Purana 7.2.75_217

7.2.75_217

ayaṃ rudro mahādevaḥ śarvo bhīmaḥ kaparddavān58 .
ugra īśāna ātmā ca ajaḥ śaṃkara eva ca ..53 ..

This is Rudra, Mahādeva, Śarva, the terrible, the matted-haired one, / the fierce, Īśāna, the Self, the unborn, and Śaṃkara himself;