A reminder to the Alzahabi

The book of preservation ticket to Shams al -Din Muhammad bin Ahmed bin Othman bin Qaymaz Al -Dhahabi is a book on biography and translations to preserve the prophetic science. Al -Dhahabi said: This is a reminder of the names of the averages of the prophetic knowledge, and whoever returns to their diligence in documentation, weakening, correction and forgery. Divide the book into twenty -one layers