Did Shaykh Muhammad ibn 'Abd al-Wahhab not sit in the mosque to teach the people, but rather went out to spread the call?

Question:
I ask Allah to do you good, Honorable Shaykh. This questioner says: What is your view of the one who says that Shaykh Muhammad ibn 'Abd al-Wahhab (may Allah have mercy on him) did not sit in the mosque to teach the people, but rather went east and west to spread the call? And what is the truth of this statement?

Answer:
How do you know that? They were contemporaries of the Shaykh. The Shaykh used to teach in the mosque and he had well-known students. He taught in Harimla, he taught in al-'Uyaynah, and he taught in al-Dar'iyyah. In every town he visited, he established a class there. He had famous students and great imams who studied under him (may Allah have mercy on them). He would send letters to the regions and countries, calling them to Allah the Exalted. He would send letters, and as for him going and traveling around, it has not reached us that he did so; rather, he would send letters and send envoys, and he would call to Allah the Exalted through his students. This is what we know from his biography (may Allah have mercy on him).