No, I can’t read Arabic at all. I just Googled ISIS flag and shahada flag and looked at the images. I already knew the ISIS design was different from the one used in Sydney. But the writing looks different than anything I saw on any of the flags. I have no idea what it says but we know it isn’t anything good.
News reports say it says “There is no god but Allah”
Many Aussie Twitter types appear to be using:
#MartinPlaceSiege
https://mobile.twitter.com/search/?q=%23MartinPlaceSiege&s=hash
Hizb it-Tarir.??