From The New Yorker:
Last May, a fax arrived at the London office of the Arabic newspaper Asharq Al Awsat from a shadowy figure in the radical Islamist movement who went by many names. Born Sayyid Imam al-Sharif, he was the former leader of the Egyptian terrorist group Al Jihad, and known to those in the underground mainly as Dr. Fadl. Members of Al Jihad became part of the original core of Al Qaeda; among them was Ayman al-Zawahiri, Osama bin Laden’s chief lieutenant. Fadl was one of the first members of Al Qaeda’s top council. Twenty years ago, he wrote two of the most important books in modern Islamist discourse; Al Qaeda used them to indoctrinate recruits and justify killing. Now Fadl was announcing a new book, rejecting Al Qaeda’s violence. “We are prohibited from committing aggression, even if the enemies of Islam do that,” Fadl wrote in his fax, which was sent from Tora Prison, in Egypt.
Fadl’s fax confirmed rumors that imprisoned leaders of Al Jihad were part of a trend in which former terrorists renounced violence. His defection posed a terrible threat to the radical Islamists, because he directly challenged their authority. “There is a form of obedience that is greater than the obedience accorded to any leader, namely, obedience to God and His Messenger,” Fadl wrote, claiming that hundreds of Egyptian jihadists from various factions had endorsed his position.