Allah sent Prophets and Messengers to guide man
Al lah sent guidance to us through His Prophets. This guidance of Allah is called wahi. The English word for wahi is revelation. Revelation means to make something known. Wahi (revelation) is the gift of Allah to man.
Who brought this wahi to the Prophets? It was Angel Jibreel ( A.S ) who brought wahi to Allah’s Prophets. These were Al lah’s messages. These messages were collected in the form of books.
The Quran speaks of these books:
The Suhuf were given to Prophet Ibraheem (A.S).
The Zaboor was given to Prophet Dawood ).
The Tawrah was given to Prophet Musa (A.S).
The Injeel was given to Prophet Isa (A.S).
The Quran was given to Prophet Muhammad (PBUH).
Al l these books had the same message of Tawheed in them, that is,
“lā ʾilāha ʾillā -llāhu (لَا إِلَٰهَ إِلَّا ٱللَّٰهُ)”,
(there is no god but Allah).
What happened to these books?
Except for the Quran, all the other books were lost or changed by people.
Today the original words of these books do not exist, but we still believe that these Books were once sent by Allah.
We now have the Quran only. Its words are as original as when they came to our Prophet Muhammad (PBUH). Allah has protected the Quran in its original form. It is a part of our faith to believe in the Quran.