Introduction to Islam. Let Baba Ali Explains: Quotations : "The Messenger of Allah said:" "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. "Those who believe in the Qu'ran, and those who follow the Jewish (scriptures), and the Christians (scriptures) ...and (all) who believe in God and the last day and work righteousness, shall have their reward with their Lord; on them shall be no fear, nor shall they grieve." The Qur'an, 2:62 "The best jihad [struggle] is (by) the one who strives against his own self for Allah, The Mighty, and Majestic," by the Prophet Muhammad. A quick overview of Islam . Islam is a monotheistic, Abrahamic religion. The root of Islam means submission and total surrender to God. Followers of Islam are Muslims, and their teachings are in the Qur'an. The "F...