Shiva Purana
अहमग्निशिरोनिष्ठस्त्वं सोमशिरसि स्थिता ॥ अग्नीषोमात्मकं विश्वमावाभ्यां समधिष्ठितम् ॥ १३ ॥
I am stationed on the head of Agni. You are stationed on the head of Soma. This universe in the form of “Agnīṣoma” is presided over by us both.
english translation
ahamagnizironiSThastvaM somazirasi sthitA ॥ agnISomAtmakaM vizvamAvAbhyAM samadhiSThitam ॥ 13 ॥
hk transliteration by Sanscript