The entire structure of the Deen of Islaam , i.e. of Imaan , is based on THREE fundamental principles which are known as Usool-e-Deen . These three Usool are:
1. TAUHEED : (The doctrine of Allah’s Unity)
2. RISAALAT : (The doctrine of believing in a Nabi )
3. AAKHIRAH : (The doctrine of the Hereafter)
These principles will be discussed in detail in the ensuing pages.
The Deen having three Usool should not be construed to mean that belief in only those three doctrines makes one a Muslim. These three principles are common to the deen brought by all the Ambiya (alayhis salaam) from Aadam (AS) to Muhammad (SAW). The Shari’ah of each Nabi and Rasool was based on these three Usool .
