Agniveshyagrihyasutra 1.4.1.20

1.4.1.20

yadi vā rathaṃ labhate rathantaramasi iti dakṣiṇaṃ cakramabhimṛśati bṛhadasi ityuttaraṃ vāmadevyamasi iti madhyamam \

Or if he obtains a chariot, he touches the right wheel with: 'You are Rathantara'; the northern [left] one with: 'You are Bṛhat'; the middle [axle] with: 'You are Vāmadevya.'