MuU 1.1.1
ॐ ब्रह्मा देवानां प्रथमः संबभूव विश्वस्य कर्ता भुवनस्य गोप्ता । स ब्रह्मविद्यां सर्वविद्याप्रतिष्ठामथर्वाय ज्येष्ठपुत्राय प्राह
oṃ brahmā devānāṃ prathamaḥ saṃbabhūva viśvasya kartā bhuvanasya goptā | sa brahmavidyāṃ sarvavidyāpratiṣṭhāmatharvāya jyeṣṭhaputrāya prāha
Sanskrit for this text is pending; the English follows the translator's numbering.
Brahmâ was the first of the Devas, the maker of the universe, the preserver of the world. He told the knowlede of Brahman, the foundation of all knowledge, to his eldest son Atharva.
Translated by F. Max Müller