Śatapatha Brāhmaṇa ("of a hundred paths") 11.6.1.2

11.6.1.2

sa hovāca prāṅ putraka vrajatāttatra yatpaśyetaddṛṣṭvā dakṣiṇā vrajatāttatra yatpaśyestaddṛṣṭvā pratyagvrajatāttatra yatpaśyestaddṛṣṭvodagvrajatāttatra yatpaśyestaddṛṣṭvaitayoḥ pūrvayoruttaramanvavāntaradeśaṃ vrajatāttatra yatpaśyestanma ācakṣīthā iti

He said, 'Go thou eastward, my boy; and having seen there what thou shalt see, go thou southwards; and having seen there what thou shalt see, go thou westward; and having seen there what thou shalt see, go thou northward; and having seen there what thou shalt see, go thou toward the northern of those two intermediate quarters in front, and tell me then what thou shalt see there.'