Shiva Purana
क्रोधसंगः कृष्णवर्णो महामहिषवेषवान् । तावन्महेश्वरः प्रोक्तस्तिरोधास्तावदेव हि ६७ ।
He has an active association with Anger. He is black in colour. He is called great lord (Maheśvara) to that extent. The ability to vanish is up to that extent.
english translation
krodhasaMgaH kRSNavarNo mahAmahiSaveSavAn । tAvanmahezvaraH proktastirodhAstAvadeva hi 67 ।
hk transliteration by Sanscript