Matsya Purana 181.4

181.4

ghorarūpaṃ samāsthāya duṣkaraṃ devadānavaiḥ.
ābhūtasaṃplavaṃ yāvat sthāṇubhūto maheśvaraḥ .. 180.4 ..

He can assume terrible forms that the Devas and Dânavas cannot assume And in this terrible form He remains firm and stable, like a pillar, till Pralaya He asked — "Now kindly describe to me the sacred places, where Maheśvara always resides—this great mystery of all"— 3-4