A Downing Street spokesperson said:
The Speaker has agreed to the Prime Minister’s request to recall Parliament this Friday to debate the UK’s response to the request from the Iraqi government for air strikes to support operations against ISIL in Iraq.
The Commons will meet on Friday for a debate on a substantive motion. The Prime Minister will open the debate and the Deputy Prime Minister will close the debate. The Prime Minister has called a meeting of the Cabinet tomorrow at 1pm.
Read more about the UK government response to ISIL.