For all I know, a sample document may have already been written. If anyone can give me the reference, please do so in the comments below. If this document has not yet been written, perhaps there are attorneys out there who can help. As reference, take a look at the Declarations of War by the US Congress for World War I and World War II.
DECLARATION OF WAR WITH ISLAM
Joint Resolution Declaring that a State of War exists between Islam and the Government and People of the United States and making provisions to prosecute same.
Whereas the extraterritorial movement known as Islam has planned, advocated, and committed unprovoked acts of War against the people of the United States of America
Whereas, numerous representatives of said Islam have announced that their exists a State of War between Islam and the United States,
Resolved by the Senate and House of Representatives of the United States of America, that a State of War now exists between Islam and the United States and is hereby formally declared. The President is authorized and directed to employ the military forces of the United States as needed and the resources of the Government to carry on the war against Islam. Further, recognizing the danger posed by individuals who are loyal to Islam who are now or may in the future be residing in the United States and its territories, the President and the Attorney General of the United States are hereby authorized to identify such individuals, take them into preventive custody, and deport them from the United States.
For purposes of this Declaration, individuals adhering to Islam are defined as those advocating or supporting jihad attacks and the institution of Sharia law for Muslims now living in the United States.