approx. what Wiki sez:

"The Authorization for Use of Military Force Against Terrorists was enacted 18 SEP 2001 authorizes the use of United States Armed Forces against those responsible for the attacks on September 11, 2001. The authorization granted the President the authority to use all 'necessary and appropriate force' against those whom he determined 'planned, authorized, committed or aided' the September 11th attacks, or who harbored said persons or groups."

There surely were al-Qaeda in Iraq on Sept. 11, but they were not directly responsible for the attacks and nobody authorized to speak for the US government ever said they were. That twisting of histiory comes directly from the imaginations of the New York Times editors and writers. It was intended to damage President George W. Bush.

Text of this Joint Resolution is easily found at several websites.