Can I leave clan and return?

[rio2014]

You can't somebody in my clan learned that the hard way)

Not true.

[TonyRigatoni]

You can't somebody in my clan learned that the hard way)

First off, how would you know this if war day hasn't started yet?? I think your facts are wrong. The FAQ clearly says you can rejoin a war with the clan you were in when the war began. Until I hear otherwise from supercell, I would say you're mistaken.