Śatapatha Brāhmaṇa ("of a hundred paths") 6.3.3.11

6.3.3.11

ākramya vājin | pṛthivīmagnimica rucā tvamiti cakṣurvai rugākramya tvaṃ vājinpṛthivīmagnimica cakṣuṣetyetadbhūmyā vṛttvāya no brūhi yataḥ khanema taṃ vayamiti bhūmestatspāśayitvāya no brūhi yata enaṃ khanemetyetat

[Vâg. S. XI, 19] 'Having come upon the earth, O courser, seek thou Agni by thy light!'--the light is the eye: thus, 'Having come to the earth, thou, O courser, seek Agni with thy eye!'--'by pawing the ground tell us where we may dig him out!'--that is, 'by pointing out that (spot) of the ground tell us where we may dig him out.'