Shiva Purana
ईशानमुकुटोपेत इत्यारभ्य पुरोदितः ॥ शिवस्य विग्रहः पञ्चवक्त्राणि शृणु सांप्रतम्॥ २३ ॥
I have already referred to the form of Śiva with Īśāna at the head. Now listen about his five faces.
english translation
IzAnamukuTopeta ityArabhya puroditaH ॥ zivasya vigrahaH paJcavaktrANi zRNu sAMpratam॥ 23 ॥
hk transliteration by Sanscript