The Ruling on a Book on Tawhid

Question:
For the faces, or is everything for the faces? Has anyone written a book on tawhid (the oneness of Allah) similar to the book of Shaykh Muhammad ibn 'Abd al-Wahhab after the death of Shaykh Muhammad? Is there a book similar to it? What Allah willed.

Answer:
But before that, some people wrote a book close to it, may Allah have mercy on him. Perhaps it was one of the reasons for Shaykh, may Allah have mercy on him, to write his book.