Śatapatha Brāhmaṇa ("of a hundred paths") 9.4.4.13

9.4.4.13

sa saṃdhyorupaspṛśya | ene yajuṣī japati tathā dve yajuṣī trīnparidhīnanuvibhavato divo mūrdhāsi pṛthivyā nābhiriti dakṣiṇe viśvasya mūrdhannadhi tiṣṭhasi śrita ityuttare mūrdhavatībhyām mūrdhā hyasyaiṣo 'psumatībhyāmagneretadvaiśvānarasya stotraṃ yadyajñāyajñiyaṃ śāntirvā āpastasmādapsumatībhyām

Having touched it (the fire) at the two joints, he mutters these two formulas,--thus two formulas equal in power three enclosing-sticks,--with (Vâg. S. XVIII, 54), 'The sky's head thou art, the earth's navel, [the essence of the waters and plants, the life of all, the ample refuge (?): homage be to the path!]' on the right, and with (55), 'On the head of the All dost thou keep standing, [in the (aerial) ocean is thy heart, in the waters thy life: bestow water, send the water-store (cloud),--from the sky, from the cloud, from the air, from the earth, favour us with rain!]' on the left (joint),--thus with two (verses) containing (the word) 'head,' for this, is indeed its head; and containing (the words) 'in the waters ': that Yagñâyagñiya doubtless is Agni Vaisvânara's chant of praise, and water is (a means of) appeasing,--therefore (he touches them) with two (verses) containing (the words)--'the waters.'