In the Bhagavad Gita, a text which post dates the Buddha, chapter XVI, 8:
'The universe," they say, "is without truth [asat that which open to destruction and change, without an atman/brahman, the Absolute within each of us],"
Without basis/unstable [having no solid ground apratis.t.ham], without a God;
Brought about by a mutual union,
How else? It is caused by lust alone.'
This is a good caricature of the Buddhist position, and certainly the Buddhist position is that the world is unstable, constantly in change, without a basis or essence - an atman/brahman -, and is without a god, "Brought about by a mutual union," and "caused by desire," all of which could be used to describe the Buddhist position, but no one else of the time.
And the Gita goes on, XVI, 9:
Holding this view,
These men of lost souls, of small intelligence,
And of cruel actions, come forth as enemies
Of the world for it destruction.