No....he preached what was in the Koran and what God told him to preach that's why his quotes sound similiar, and he didn't write the Koran how would he know how a sperm becomes in a womb, and How would he know the universe is expanding? In the Koran it says God is expanding the universe so please try harder next time this is rubbish
I have written a piece on Muhammad's so called knowledge of the womb, it is a few pages back on this thread. It explains there was such knowledge in the world long before Muhammad's time. As for the quran saying the universe is expanding, Which translation are you using? because its ambiguous at best. Here are the most well known translations of the verse you refer to.
51:47
Pickthall- We have built the heaven with might, and We it is Who make the vast extent (thereof).
Yusuf Ali- With power and skill did We construct the Firmament: for it is We Who create the vastness of space.
Hilali-Khan- With power did We construct the heaven. Verily, We are Able to extend the vastness of space thereof.
Shakir- And the heaven, We raised it high with power, and most surely We are the makers of things ample.
Sher Ali- And WE have built the heavens with Our own hands, and, verily, WE have vast powers.
Khalifa- We constructed the sky with our hands, and we will continue to expand it.
Arberry- And heaven -- We built it with might, and We extend it wide.
Palmer- And the heaven - we have built it with might, and, verily, we do surely give it ample space!
Rodwell -And the Heaven - with our hands have we built it up, and given it its expanse;
Sale -We have built the heaven with might; and we have given [it] a large extent: