Shatapatha Brahmana 5.1.5.20

5.1.5.20

athottareṇa tricena | juhoti vānu vā mantrayate dvayaṃ tadyasmājjuhoti vānu vā mantrayate yadi juhoti yadyanumantrayate samāna eva bandhuretānevaitadaśvāndhāvata upavājayatyeteṣu vīryaṃ dadhāti tisro vā imāḥ pṛthivya iyamahaikā dve asyāḥ pare tā evaitadujjayati

[Vâg. S. IX, 15; Rik S. IV, 40, 3], 'And of him, the running, speeding, there fanneth like the wing of the eager bird,--as of the gliding eagle,--about the breast of Dadhikrâvan passing along with might, hail!'