Shatapatha Brahmana 1.2.1.14

1.2.1.14

atha yo dṛṣadupale upadadhāti | sa kṛṣṇājinamādatte śarmāsīti tadavadhūnotyavadhūtaṃ rakṣo 'vadhūtā arātaya iti so 'sāveva bandhustatpratīcīnagrīvamupastṛṇātyadityāstvagasi prati tvāditirvettviti so 'sāveva bandhuḥ

Now he who puts the two mill-stones on (the black antelope skin), (in the first place) takes up the black antelope skin, with the text (Vâg. S. I, 19): 'Bliss-bestowing art thou!' He shakes it, with the text (ib.): 'Shaken off is the Rakshas, shaken off are the enemies!' the import and application of which is the same (as above, I, 1, 4, 4). He spreads it (on the ground) with the neck-part turned towards west, whilst muttering the text (ib.): 'The skin of Aditi (the inviolate or boundless earth) art thou! May Aditi acknowledge (receive) thee!' the import (of this formula) being the same (as before, I, 1, 4, 5).