Śatapatha Brāhmaṇa ("of a hundred paths") 8.6.3.1

8.6.3.1

gārhapatyamupadadhāti | etadvai devāḥ prāpya rāddhvevāmanyanta te 'bruvankenedamarātsmeti gārhapatyenaivetyavruvangārhapatyaṃ vai citvā samāruhya prathamāṃ citimapaśyāma prathamāyai dvitīyāṃ dvitīyāyai tṛtīyāṃ tṛtīyāyai caturthīṃ caturthyai pañcamīm pañcamyā idamiti

He lays down the Gârhapatya. For the gods, having obtained this much, thought they had succeeded. They spake, 'Whereby have we succeeded in this?'--'By means of the Gârhapatya,' they said; 'for, after building the Gârhapatya and mounting thereon, we saw the first layer, from the first (we saw) the second, from the second the third, from the third the fourth, from the fourth the fifth, and from the fifth this one.'