In a prison cell south of Cairo a repentant Egyptian terrorist leader is putting the finishing touches to a remarkable recantation that undermines the Muslim theological basis for violent jihad and is set to generate furious controversy among former comrades still fighting with al-Qaida.Sayid Imam al-Sharif, 57, was the founder and first emir (commander) of the Egyptian Islamic Jihad organisation, whose supporters assassinated President Anwar Sadat in 1981 and later teamed up with Osama Bin Laden in Afghanistan in the war against the Soviet occupation.Sharif, a surgeon who is still known by his underground name of "Dr Fadl", is famous as the author of the Salafi jihadists' "bible" - Foundations of Preparation for Holy War. He worked with Ayman al-Zawahiri, another Egyptian doctor and now Bin Laden's deputy, before being kidnapped in Yemen after 9/11, interrogated by the CIA and extradited to Egypt where has been serving a life sentence since 2004.Sharif recently gave an electrifying foretaste of his conversion by condemning killings on the basis of nationality and colour of skin and the targeting of women and children, citing the Qur'anic injunction: "Fight in the cause of God those who fight you, but do not transgress the limits; for God loveth not transgressors." Armed operations were wrong, counterproductive and must cease, he declared sternly.....