"The messenger of Allah said: "Islam is to testify that there is no god but Allah and Muhammad is the messenger of Allah, to perform the prayers, to pay the zakat, to fast in Ramadhan, and to make the pilgrimage to the House if you are able to do so." He said: " You have spoken rightly", Jebreel (Gabriel) from Number 2 of "Al-Nawawi's Forty Hadiths." 1
"If anyone harms (others), God will harm him, and if anyone shows hostility to others, God will show hostility to him." Sunan of Abu-Dawood, Hadith 1625.
"Jim Jones, David Koresh and Meir Kahane do not typify Christianity and Judaism in the eyes of the civilized West, but those same eyes are prone to see Osama bin Laden and Mullah Muhammad Omar as typifying Islam," Richard Bulliet 2
Christianity is currently the largest religion in the world. It is followed by about 33% of all people -- a percentage that has remained stable for decades. If current trends continue, Islam will become the most popular world religion sometime in the mid-21st century.