However, it is important to clarify your specific goal for this search, as it could refer to a few different things: :

Since there are many different editions and translations of this title available online, could you clarify if you are looking for the in a specific language (like Bengali or Urdu) or a specific chapter ?

: Are you trying to find a particular section or ruling (Masala) within the book that might be indexed under "91"?

The search for (The Purpose of the Believer), a foundational Islamic text often attributed to Ashraf Ali Thanwi , typically leads readers to look for digital copies like PDF books for easy access on mobile devices or computers.