Shiva Purana
पञ्चाध्वव्यापिनं साक्षात्कलापञ्चकविग्रहम् ॥ ईशानमुकुटं देवं पुरुषाख्यं पुरातनम् ॥ ३१ ॥
It pervades the five paths and is directly the embodiment of the five arts. The northern crown is the ancient god known as Purusha.
english translation
paJcAdhvavyApinaM sAkSAtkalApaJcakavigraham ॥ IzAnamukuTaM devaM puruSAkhyaM purAtanam ॥ 31 ॥
hk transliteration by Sanscript