Saurapurana 45.14

45.14

guhyo'haṃ sarvadeveṣu āraṇyo'hamajo'pyaham
puṣkaraṃ ca pavitraṃ ca madhyaṃ cāhaṃ tataḥ param

I am the secret among all gods, the forest-dweller, and the unborn; / I am the sacred lotus-pond, the purifier, the middle, and beyond that;