Shiva Purana
कः पुमान् सर्वसत्त्वेभ्यः पुराणः पुरुषः परः ॥ विशुद्धः परिपूर्णश्च शाश्वतः परमेश्वरः ॥ २८ ॥
Who is that being more ancient than all living beings? Who is the greatest Puruṣa? Who is the purest, perfect, and eternal Being?
english translation
kaH pumAn sarvasattvebhyaH purANaH puruSaH paraH ॥ vizuddhaH paripUrNazca zAzvataH paramezvaraH ॥ 28 ॥
hk transliteration by Sanscript