It is only the distinguishing characteristic of Islam that the clear proofs of its truthfulness are not only found in the pages of books which console the educated world, but if one ponders and examines the pages of world history to see the condition of pre-Islamic history and post-prophethood era, every pondering mind and reflectful eye will admit that the existence of the Sahabah is a manifest miracle. Each of the predecessors who were scholars were living examples of the miraculousness nature of Islam. By looking at them, one remembered Allah. They were an example an actions, character, social life and dealings. The effect of visiting them once cannot do the work of a thousand lectures, sermons and exertion.