Ibn Taymiyyah said: "This (enjoining good and forbidding evil) is a duty that the entire Ummah is obliged to fulfil. It is what the Ulama know as an obligation of collective responsibility, if a group in society undertook to discharge it, the other members of this society are absolved from it. The entire Ummah is commissioned to undertake it, but if a group therein was responsible for discharging it, the rest of society is no longer obliged to undertake it."
Author: Sheikh-ul-Islam ibn Taymiyyah
Reveiwers: Muhammad AbdulRaoof
Translators: Salim Abdullah Marjan
Dr. Saleh As-Saleh shows in his introduction to this book that Allah could not have created this universe without a purpose. He is All-Wise, All- Knowledgeable, All-Merciful and All-Just. All of these attributes entail providing ways of guidance that would lead to the proper knowledge of Him, and thus the right way to worship Him. Allah sent his messengers to direct man to relate to His Creator through complete submission and obedience (this is the meaning of Islam). He needs to know what benefits him and what harms him. The Message from Allah comprehends everything. It brings man to live for a noble purpose. All forms of worship are explained in the Qur'an and by the Prophet. Worship is not left for our limited minds to decide upon their ways.
Author: Dr. Saleh As-Saleh
Publisher: http://understand-islam.net - Understand Islam Website
This treatise was prepared by the Agency of Islamic Enlightenment in Hajj. Includes a discussion about those things which nullify a person's Islam as well as common errors made by the commonfolk.
Author: Faisal Bin Ali Al-Ba'adani
Reveiwers: Muhammad AbdulRaoof
Publisher: A website Islamic Library www.islamicbook.ws
A nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243
The Three Fundamental Principles and the Four Basic Rules of Islam.
Author: Muhammad Bin Abdul Wahhab
Publisher: Daar Al-Watan
Source: http://www.islamhouse.com/p/1333
This book gives a clear explanation of the Muslim sound Creed which is the core of the religion of Islam, as the belief in Tawhid (monotheism) is the purpose for which Allah created both mankind and jinn, and thus, those whoes belief in Tawhid is corrupt, are not considered Muslims.
Author: Saleh Bin Fawzaan al-Fawzaan