Shiva Purana
ततः प्राणेश्वरो रुद्रो भगवान्नीललोहितः ॥ प्रसादमतुलं कर्तुं प्रादुरासीत्प्रभोर्मुखात् ॥ २६ ॥
Then Rudra, the lord of vital breaths, appeared through the mouth of Brahmā in order to confer unequalled favour.
english translation
tataH prANezvaro rudro bhagavAnnIlalohitaH ॥ prasAdamatulaM kartuM prAdurAsItprabhormukhAt ॥ 26 ॥
hk transliteration by Sanscript