Shiva Purana
उकारो दक्षिणाग्निश्च नभस्तत्त्वं यजुस्तथा । मध्यंदिनं च सवनमिच्छाशक्त्यंतरात्मकौ ९१ ।
The nine deities of the second line are:—The syllable “U”, Dakṣiṇā fire (sacrificial fire), the principle of Ether, Attribute Sattva, Yajurveda, Mādhyandina Savana midday rituals), Icchāśakti (the will-power), the Antarātman (the immanent soul).
english translation
ukAro dakSiNAgnizca nabhastattvaM yajustathA । madhyaMdinaM ca savanamicchAzaktyaMtarAtmakau 91 ।
hk transliteration by Sanscript