Belief in the divine books is the third key belief in Iman-e-Mufassal.

Muslims believe that Allah sent books to guide people. These books were given to different prophets over time. Each book taught people how to live a good life and obey Allah. The most important and final book is the Quran, which was given to Prophet Muhammad (SAW).

Other divine books include the Torah given to Prophet Musa (AS), the Injeel given to Prophet Isa (AS), the Zabur given to Prophet Dawood (AS), and the Suhuf given to Prophet Ibrahim (AS).

Muslims believe all these books were true and came from Allah, but only the Quran remains unchanged. It is the complete and final message for all humans until the Day of Judgment.

This belief teaches Muslims to respect all the holy books and follow the teachings of the Quran in their daily lives.