Shiva Purana
आकण्ठं विद्यया तद्वदाललाटं तु शान्तया॥ तदूर्ध्वं शान्त्यतीताख्यकलया परया तथा ॥ ५९ ॥
The neck is covered with knowledge and the forehead is covered with peace. Beyond that is the supreme art called Shanti-atita.
english translation
AkaNThaM vidyayA tadvadAlalATaM tu zAntayA॥ tadUrdhvaM zAntyatItAkhyakalayA parayA tathA ॥ 59 ॥
hk transliteration by Sanscript