Gohar Shahi then left his work , family and parents and went to Shorkot , where under the blissful supervision of Sultan Bahu made the book `` Nurul Huda ( Light of Guidance ) '' ( a book written by Sultan Bahu ) , his journey 's companion . Gohar Shahi left his work , family and parents and went to Shorkot , where he read the book Noor ul Huda ( Light of Guidance ) , written by Sultan Bahu .