sahásradhāre vítate pavítra ā́ vā́cam punanti kaváyo manīṣíṇaḥ |
rudrā́sa eṣām iṣirā́so adrúha spáśaḥ suáñcaḥ sudŕ̥śo nr̥cákṣasaḥ ||
7 What time the filter with a thousand streams is stretched, the thoughtful sages purify their song therein. Bright-coloured are their spies, vigorous, void of guile, excellent, fair to see, beholders of mankind.