Shiva Purana
न जानति परं साक्षात्प्रणवार्थम्महेश्वरम् ॥ सगुणन्निर्गुणं ब्रह्म त्रिदेवजनकम्परम् ॥ ४॥
They do not know the great lord, the meaning of the Praṇava, the Nirguṇa and Saguṇa Brahman, the great progenitor of trinity.
english translation
na jAnati paraM sAkSAtpraNavArthammahezvaram ॥ saguNannirguNaM brahma tridevajanakamparam ॥ 4॥
hk transliteration by Sanscript