Kena (Talavakāra) Upaniṣad 3.8

3.8

tad abhyadravat
tam abhyavadat
ko 'sīti
vāyur vā aham asmīty abravīn
mātariśvā vā aham asmīti

20 (7) Then they said to Vāyu (Wind): ‘Vāyu, find out this—what this wonderful being is.’ ‘So be it.’ 21 (8). He ran unto It. Unto him It spoke: ‘Who are you?’ ‘Verily, I am Vāyu,’ he said. ‘Verily, I am Mātariśvan.’ 22 (9). ‘In such as you what power is there?’ ‘Indeed, I might carry off everything here, whatever there is here in the earth.’