Islam did not totally prevail at the time of our Prophet (saas), but Islam will prevail by means of his son, his commander. It will prevail by means of Mahdi. Whose victory will that be? God's. Whom does God use as an instrument for that? The son of our Prophet (saas). The victory attained by the grandson of our Prophet (saas) will be the victory, the honor of our Prophet (saas). - Harun Yahya