Srimad Bhagavad-Gita :
Slokam-5. ( That knowledge of the field of activities and of the knower of activities is described by various sages in various Vedic writings-especially in the Vedānta-sūtra-and is presented with all reasoning as to cause and effect. )
rshibhirbahudha gitam chandobhir vividhaih prthak,
brahmasutrapadaiscaiva hetumadbhir viniscitaih.
rshibhih bahudha = by Rishi-s in many ways;
vividhaih chandobhih = many different Vedic mantra-s ( hymens );
hetumadbhih viniscitaih = with cause and effect and ascertain ( certain and sure );
brahma-sutrapadais eva ca = the vedantam and aphorism too;
( etat) prthak gitam = variously described ( this specially reflected ).
Other scriptures such as the Chandogya Upanisad VI.II.I and II state : -
This creation was only existence in the beginning.
How can existence manifest from non-existence?
Who would be abl…