Śatapatha Brāhmaṇa ("of a hundred paths") 13.2.6.2

13.2.6.2

tadāhuḥ parāṅvā etasmādyajña eti yasya paśurupākṛto'nyatra vederetītyetaṃ stotaranena pathā punaraśvamāvartayāsi na iti vāyurvai stotā tamevāsmā etatparastāddadhāti tathā nātyeti

Concerning this they say, 'Surely, the sacrifice goes from him whose beast, when brought up, goes elsewhere than the vedi (altar-ground).' [Let him, therefore, mutter Vâg. S. XXIII, 7,] 'Singer of praise, make that horse come back to us by that path!'--the singer of praise, doubtless, is Vâyu (the wind) it is him he thereby places for him (the Sacrificer) on the other side, and so it does not go beyond that.