Shiva Purana
ब्रह्मोवाच ॥ नीललोहित जाने त्वां मा भैषीश्चन्द्रशेखर ॥ भालस्थलान्मम पुरा रुद्रः प्रादुरभूद्भवान् ॥ ४२ ॥
Brahma said. I know you are blue and red, don't be afraid, Chandrashekhar. In the past you appeared as Rudra from the place of my forehead.
english translation
brahmovAca ॥ nIlalohita jAne tvAM mA bhaiSIzcandrazekhara ॥ bhAlasthalAnmama purA rudraH prAdurabhUdbhavAn ॥ 42 ॥
hk transliteration by Sanscript