Śatapatha Brāhmaṇa ("of a hundred paths") 11.2.1.4

11.2.1.4

trirhi vai puruṣo jāyate evamevainametadyajñāttrirjanayati tāsāmekādaśānāṃ triḥ prathamāmanvāha triruttamām

For thrice, indeed, man is born, and it is just in this way that he causes him to be born thrice from the sacrifice. Of those eleven (kindling-verses) he recites thrice the first and last:--