My brother; this is a study of a valuable treatise by the Imaam, the rectifier, the reviver, Shaykhul-Islaam Muhammad ibn ‘Abdul-Wahhaab—may Allaah have mercy upon him and forgive him— “The Nullifiers of Al-Islaam”. He, may Allaah have mercy upon him, wrote it advising and warning; because just as the Muslim is required to know the truth and guidance in order that he may love it and traverse upon it, he is also required to know falsehood and misguidance in order that he may hate it and avoid it. Allaah, the Glorified and High, has clarified within the Qur’aan the path of the believers as well as the path of the criminals; the actions of the believers and the actions of the criminals and the qualities of each as well as the end result of each. He also clarified that which he has prepared for the believers from abundant reward and that which he has prepared for the criminals from painful punishment.