Śatapatha Brāhmaṇa ("of a hundred paths") 1.1.2.13

1.1.2.13

athākramate | viṣṇustvā kramatāmiti yajño vai viṣṇuḥ sa devebhya imāṃ vikrāntiṃ vicakrame yaiṣāmiyaṃ vikrāntiridameva prathamena padena paspārāthedamantarikṣaṃ dvitīyena divamuttamenaitāmvevaiṣa etasmai viṣṇuryajño vikrāntiṃ vikramate

He now ascends (the cart by the southern wheel), with the text (Vâg. S. I, 9 c): 'May Vishnu ascend thee!' For Vishnu is the sacrifice; by striding (vi-kram) he obtained for the gods this all-pervading power (vikrânti) which now belongs to them. By his first step he gained this very (earth), by the second the aërial expanse, and by the last step the sky. And this very same pervading power Vishnu, as sacrifice, by his strides obtains for him (the sacrificer).