What is the source of Shari'a law in Islam? In Islam we are bound by rules formulated by the following:
1. Directly by Allah (Qur'an)
2. By the Prophet or Imams; the Sunnah (Hadith)
3. Mujtahids* (Mujtahid (jurist), capable of inferring and deducing from the religious sources and evidence)
4. Ijma (consensus)
5. Aqal (reasoning and intellect)
*The Mujtahids base their laws from the Qur'an and Hadith, and if an answer is not available there they will go to number 4 and/or 5.