Texts containing practical instructions or plans for mans life according to Islamic thought constitute our most valuable writings. These types of records and texts will be the primary part used for research by the Islamic scholar requiring the most strenous, comprehensive research work. The book Vasael al-Shia ela-Tashil Masael al-Sharia alone contains 35,850 traditions which speak on the environs of Islamic law and its practical matters. Traditions on the same subject but which do not appear in Vasael al-Shia are gathered in the book Mostadrak al-Vasael. The number of traditions found in this book do not vary much from the number listed in the first book.