Skandapurana 14.4.5

14.4.5

tatastuṣṭo mahādevastasyarṣeḥ sumahātmanaḥ ..
bhittvā taṃ parvataṃ sadyastatpuro liṃgamutthitam ..
taṃ dṛṣṭvā vismayāviṣṭo muniḥ stotramudairayat.. 5 ..

Then Mahādeva, pleased with that great-souled seer, / split open that mountain, and a liṅga immediately arose before him. / Seeing it, filled with wonder, the sage uttered a hymn of praise: