Śatapatha Brāhmaṇa ("of a hundred paths") 1.8.3.26

1.8.3.26

sa yasyānaso havirgṛhṇanti | anasastasya dhuri vimuñcanti yato yunajāma tato vimuñcāmeti yato hyeva yuñjanti tato vimuñcanti yasyo pātryai sphye tasya yato yunajāma tato vimuñcāmeti yato hyevaṃ yuñjanti tato vimuñcanti

For whomsoever they take the sacrificial food from a cart, for him they unyoke (the spoons, by placing them) on the yoke of that cart, thinking, 'Where we yoke, there we also unyoke;' for from the same place where they yoke, they also unyoke. For him, on the other hand, for whom they take it from a jar, (they unyoke the spoons, by placing them) on the wooden sword, thinking, 'Where we yoke, there we also unyoke;' for from the same place where they yoke, they also unyoke.