Muhammad ibn 'Abd Al-Wahhab ibn Sulaiman ibn Ali ibn Muhammad ibn Ahmad ibn Rashid Al-Tamimi[1] (1703–1792) (Arabic: محمد بن عبد الوهاب التميمي‎) was an Islamic scholar born in Najd, in Arabian Peninsula.
Imam Muhammad Ibn Abdul Wahhab was a great man, an outstanding reformer and a zealous preacher, who appeared in the Arabian Peninsula in the twelfth century A.H. He was educated by his father in his homeland, Oyayna, a village located at Yamama in Najd, northwest to the city of Riyadh. He learnt to read the Qur'aan at a very early age and exerted himself in studies and advanced learning at the hands of his father, Shaikh Abdul Wahhab Ibn Sulaiman, who was a great jurisprudent and the Judge of Oyayna.

People in Najd at that time lived in a condition that could not be approved by any believer. Polytheism had spread widely; people worshiped domes, trees, rocks, caves or any persons who claimed to be Awliya (saints). Magic and soothsaying also had spread. When the Shaikh saw that polytheism was dominating the people and that no one showed any disapproval of it or no one was ready to call people back to Allah, he decided to labor singly and patiently in the field. He knew that nothing could be achieved without Jihad, patience and suffering.
The Shaikh continued calling people to the Path of Allah and guided them to piety, righteousness and love in the cause of Allah.
The Shaikh, thus, strove in his preaching and Jihad for fifty years from 1158 A.H. until he died in 1206. He resorted to all methods of his mission - Jihad, preaching, resistance, debates and arguments until people adhered to obedience and demolished the domes and mosques built by them on the graves and agreed to run their affairs in accordance with Islamic Law, discarding all rules and laws which had been applied by their fathers and forefathers. Then after the death of the Shaikh, his sons, grandson and supporters continued his mission and struggle in the cause of Allah.