[1][2] The two imams agreed to call for correcting the people's faith from the polytheism, heresies, and superstitions attached to it, by returning to what Muhammad was upon, and carrying out the duty of enjoining what is right and forbidding what is wrong.
[3] After the pact, the reform movement began its work, and the Salafist call spread and became widely influential with supporters throughout the Arabian Peninsula and outside it.
[4] When the call of Muhammad bin Abdul-Wahhab began to spread to combat the heresies and superstitions that were widespread at that time in Najd in particular and the Arabian Peninsula in general, the call was subjected to harassment in attempts by some to get rid of Muhammad bin Abdul-Wahhab, and when he felt this, he decided to move from his hometown of Uyayna to Diriyah.
Most of the rulers of the region were afraid to embrace this call, for fear of those who might confront him, especially since there were many who did not see any violation in the innovations and superstitions that Muhammad bin Abdul Wahhab was fighting.
It is the word of monotheism, and the first thing the messengers called for, from the first to the last.” The sources do not mention a specific date for this meeting, but it was shortly after the arrival of Muhammad bin Abdul-Wahhab to Diriyah.
The call of Muhammad bin Abdul Wahhab began its process to cover the entire Arabian Peninsula and from there to all countries of the Islamic world, with supporters and helpers.
The summary of Ibn Abd al-Wahhab's call, which he sought to spread, was to return Muslims to what the nation's predecessors were at the beginning of Islam, during the era of the Rightly Guided Caliphs, a pure return free from heresies and superstitions, and to adopt the clear text and the correct transmission, represented by the authentic narrations that do not differ from what is clear and reasonable.
The battles between Diriyah, the seat of the first Saudi state, and Dham bin Dawas, the ruler of Riyadh, continued for more than three years.