RV 3.29.6
यदी मन्थन्ति बाहुभिर् वि रोचते ऽश्वो न वाज्य् अरुषो वनेष्व् आ । चित्रो न यामन्न् अश्विनोर् अनिवृतः परि वृणक्त्य् अश्मनस् तृणा दहन् ॥
yadī manthanti bāhubhir vi rocate 'śvo na vājy aruṣo vaneṣv ā | citro na yāmann aśvinor anivṛtaḥ pari vṛṇakty aśmanas tṛṇā dahan ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
When with their arms they rub him straight he shineth forth like a strong courser, red in colour, in the wood. Bright, checkless, as it were upon the Atvins' path, lie passeth by the stones and burneth up the grass.
Translated by Ralph T. H. Griffith (1896)