No, the question is not whether it leads to the truth or not. That is personal.Zamorak666 wrote: You can only be shown the path to the truth, but only you can truly let yourself see the truth. This is why Satan says he leads to the straight path without a book.
The question is, whether it is Satan's words passed in Kitab Al-Jilwah, as you mentioned in the previous post. One can as well say that it was Al-Khidr, one of the Islamic Sufi immortals, who pass the words in the book, since there are some who believe that he is one of Melek Taus' manifestations.