I saw this coming over two years ago (and before that, too, in Islam Unveiled). From Reuters, with thanks to Eschwapp:
DUBAI (Reuters) – Iraq’s al Qaeda group said on Thursday that Islamic sharia law should be the only legislation to govern the country, according to an Internet statement.
“The Islamic sharia is the right religion and anything else is wrong and rejected, including the constitution. No human being is allowed to legislate laws which are the right of God alone,” said the statement posted on a Web site frequently used by the al Qaeda organization in Iraq.
“Participating in drafting legislations and the constitution is equal to infidelism and blatant polytheism. Whoever believes in it or calls for it or rules by it is an apostate and an infidel.”