Miracle Hadith about Wahhabism

Here is the miracle hadith exposing Muhammad ibn abd al Wahhab (1703-1792), the founder of heretic Wahhabi sect. Even his own brother, Shayh Sulaiman, wrote a book against him, proving that his teachings are heretic and bid'a. So how could Wahhabism be established in the region which is called today "Saudi Arabia"? It was established with violence and terror, most important with the help of the British between 1865 and 1930. Their intention was to destroy the unity of the ummah. Especially the British Air Force was doing great jobs between 1915 and 1930. But IMAM AL MAHDI WILL FIGHT THESE WAHHABIS !