Śatapatha Brāhmaṇa ("of a hundred paths") 9.2.3.19

9.2.3.19

dvābhyāmupadadhāti | dvipādyajamāno yajamāno 'gniryāvānagniryāvatyasya mātrā tāvataivainametadupadadhāti triṣṭubbhyāṃ traiṣṭubho hyeṣa na sādayatyasannoy hyeṣa na sūdadohasādhivadati prāṇo vai sūdadohāḥ prāṇa eṣa kim prāṇe prāṇaṃ dadhyāmiti taṃ nidhāya yathā na naśyet

With two (verses) he sets it up;--two-footed is the Sacrificer, and the Sacrificer is Agni: as great as Agni is, as great as is his measure, with so much he thus sets him (the sun, Agni) up. With trishtubh (verses he sets him up),--for that (sun) is related to the Trishtubh. He does not 'settle' (the stone), for unsettled is that (sun); nor does he pronounce the Sûdadohas over it;--the Sûdadohas means the breath, and that (sun) is the breath, and why should he put breath into (or on) the breath? Having deposited it in such a way that it is not lost;--