FIRE. Arabic nar نار
(1) The term an nar, “the fire”, is generally used in the Qur’an and the Traditions for “hell.” (2) In the Qur’an (Surah xxxvii 29) the power of God is declared as being able to give fire out of a given tree.” On which al Bazizawi says :the usual way of getting fire is by rubbing two pieces of wood together one of which is markh and the other afar, and they produce fire, although both the sticks are green. (3) The burning to death of human beings is condemned by Muhammad, who said ‘Let no one punish with the punishment of fire but God’.
Based on Hughes, Dictionary of Islam