From MEMRI TV via LGF:
He knows this to be true because it’s in the Koran. On other scientific questions I suspect he also heeds the literal Koran. For example, I suspect he diverges somewhat from Darwin – evolution theory-wise. He could probably find a sura demonstrating that only Jews are “descended” from Apes (and Pigs).
But, then, he didn’t bring up Mormons, either.