The report of the meeting on the Kremlin’s website is careful not to repeat this claim or even to mention Al-Baghdadi’s name
Defence Minister Sergei Shoigu updated the meeting participants on the strike delivered by the Russian Aerospace Forces near Raqqa in Syria, in which a large group of terrorists, possibly including some ISIS leaders, have been killed.The Russians have also released a picture showing the buildings in Raqqa where the meeting of ISIS leaders which Al-Baghdadi is supposed to have attended took place. The picture shows photographs of the buildings before and after the air strike.
Putting aside the question of whether or not Al-Baghdadi really was killed in the air strike, possibly the most interesting fact about the air strike is that the fact it took place shows that the Russians must have had advanced warning of the meeting of the ISIS leaders in Raqqa and of the buildings where the meeting took place. The fact that they believe Al-Baghdadi may have been present at the meeting also suggests that they must have had some inside knowledge of the meeting.
This points to the Russians having obtained intelligence from inside ISIS. As it happens the Russian Defence Ministry is also claiming today that Russia received intelligence earlier this month of an ISIS to storm Deir Ezzor, which also points to the Russians having intelligence sources inside ISIS.