Hashemi’s name is not known to security forces, and is believed to be a nom de guerre.
IS did not provide many details about the new leader or release a photo, but it did describe him as a “prominent figure in jihad”.
The statement also claimed Hashemi was a veteran jihadist fighter who had fought against the US in the past.
With the name “al-Qurashi”, the group also made clear that he claims to be descended from the Prophet Muhammad’s Quraysh tribe – something generally held by pre-modern Sunni scholars as being a key qualification for becoming a caliph.
Full article over at BBC News