Two out of three of your sources are rubbish and, I think, show you up for what you are. There's a lot of claptrap coming from Israel over Hamas being one and the same with ISIS, and then you have Sisi simply not liking them because of their connection to the deposed Muslim Brotherhood government in Egypt. 

 Hamas is Islamist-Nationalist (and so the Wahhabis of ISIS see them as heretical) and there's not really any evidence to the claims of Hamas and ISIS colluding in the Sinai. It's by and large Israeli nonsense of the kind they've been rattling off since AQ became such a hot issue.