Śatapatha Brāhmaṇa ("of a hundred paths") 3.6.4.11

3.6.4.11

sa yam prathamaṃ śakalamapacinatti | tamādatte taṃ vā anakṣastambhaṃ vṛśceduta hyenamanasā vahanti tathāno na pratibādhate

The first chip which he cuts off, he takes (and lays aside). Let him cut (the tree) so as to cause no obstruction to the axle. For, indeed, it is on a cart that they convey it, and in this way he does not obstruct the cart.