Mandala 1, Hymn 185, Verse 1
क॒त॒रा पूर्वा॑ कत॒राप॑रा॒योः क॒था जा॒ते क॑वयः॒ को वि वे॑द विश्वं॒ त्मना॑ बिभृतो॒ यद्ध॒ नाम॒ वि व॑र्तेते॒ अह॑नी च॒क्रिये॑व
"WHETHER of these is elder, whether later? How were they born? Who knoweth it, ye sages? These of themselves support all things existing: as on a car the Day and Night roll onward."