Al-Azhar Mosque
The group has been said to form "the most extreme and violent strand in the Salafist jihadist movement." The "takfir" of the Takfiris refers to the belief (of at least some of the movement such as Ali Ismael, the sheikh of Egypt's Al-Azhar Mosque at the time) that not only were Egyptian President at the time Gamal Abdel Nasser and his government officials apostates, but so was "Egyptian society as a whole" because it was "not fighting the Egyptian government and had thus accepted rule by non-Muslims".