The conflict between truth and falsehood is ongoing and will last as long as this world remains. The fact that some groups among the Ummah of Muhammad (peace and blessings of Allah be upon him) are following the people of falsehood.
Author: Muhammad Salih Al-Munajjid
Publisher: http://www.islamqa.com - Islam : Question & Answer Website
Take your Belief from the Quran and Sunnah: a booklet containing important questions of religious beliefs, the writer replied it was seeded with evidence from the Quran and Sunnah; to reassure the reader to answer correctly; because the doctrine of unification (Tawheed) is the basis of His Excellency rights in this world and the Hereafter.
Author: Muhammad Jameel Zeeno
Publisher: http://www.saaid.net - Saaid Al Fawaed Website
A proof that the Qur'an is from God and that Muhammad is a Messenger of God.
Author: Abdullah Bin Abdur-Rahman AL-Jibreen
Publisher: Memphis Dawah
Source: http://www.islamhouse.com/p/1285
The story of one of the Companions search for the truth.
Author: Dr. Saleh As-Saleh
Source: http://www.islamhouse.com/p/1225
The Hadith is Proof Itself in Belief & Laws
Author: Muhammad Naasiruddeen al-Albaanee
A comprehensive explanation and commentary of the first 24 hadith of Imam al-Nawawi's classic compilation, Riyadh al-Saliheen.
Author: Abu Zakaria Al-Nawawi