Brahma Sutras
ॐ वैद्युतेनैव ततस्तच्छ्रुतेः ॐ ॥ ४-३-६॥
From there they are guided by the very same being who comes to lightning; for it is of him that the Upanishad speaks.
english translation
OM vaidyutenaiva tatastacchruteH OM ॥ 4-3-6॥
hk transliteration by Sanscript