- The Qur'an (القرآن الكريم): The central religious text of Islam, which Muslims believe to be the word of God as revealed to the Prophet Muhammad (peace be upon him).
- Tafsir (تفسير): Commentaries and interpretations of the Quranic verses. Some famous tafsir include:
- Seerah (السيرة النبوية): Biographies of the Prophet Muhammad (peace be upon him). One of the most famous is "Ar-Raheeq Al-Makhtum" (The Sealed Nectar).
- Fiqh (الفقه): Islamic jurisprudence or the understanding of Islamic law. Some major schools of thought include:
- Hadith Qudsi (الحديث القدسي): Sacred sayings of the Prophet Muhammad (peace be upon him) in which he relates the words of Allah.