
US President Donald Trump says he knew about the raid for three days.
The US ground forces had engaged in a brief firefight at Abu Bakr al-Baghdadi's compound.
Al-Baghdadi became the leader of the Islamic State of Iraq and the Levant (ISIL or ISIS) group in 2010 and declared an affiliation to al-Qaeda.
Trump said his body was mutilated by the blast and test results proved it was him.
Al Jazeera's senior political analyst Marwan Bishara reports from London.