The Guide of Islam, the well-wisher of all humanity, on whom be peace and blessings, had complete conviction and the highest degree of knowledge and belief in his Messengership and Prophethood, and in his own truth and success. Never did any kind of doubt or uncertainty enter the holy and enlightened heart of the Holy Prophet, peace be upon him, but set aside the mention of the Holy Prophet(sas) himself, even his Companions and followers like myself hold the highest degree of certainty in his truth and Prophethood.