What are the Muslim holy books called and in which languages?

The Quran

* The Quran is the central religious text of Islam.

* It is believed to be the direct word of God as revealed to the Prophet Muhammad.

* It is written in Arabic.

The Hadith

* The Hadith are sayings and actions of the Prophet Muhammad.

* They are considered to be second only to the Quran in importance.

* They are written in Arabic.

The Sunnah

* The Sunnah is the way of life of the Prophet Muhammad.

* It includes his actions, sayings, and approvals.

* It is considered to be a model for all Muslims to follow.

* It is written in Arabic.