Question: Does mere articulation of Shahaadah (Testimony of Faith) protect render one’s blood and property inviolable? Is it sufficient to utter Shahaadah without knowing the meaning of it? Does uttering Shahaadah entail admitting the utterer into Jannah (Paradise) and save them from the Hellfire?
Answer: The phrase ‘Laa ilaaha illaa Allaah, Muhammad rasool-Allaah (There is no god but Allaah and Muhammad is the Messenger of Allaah)’ constitutes the foundation of faith. One who utters these words will be rightfully called a Muslim whose blood may not be legally spilt and whose property may not be lawfully seized. One must be taught the meaning this phrase, and if one accepts its embodied truth and becomes an upright Muslim, it is a testimony of their honesty and truthfulness. However, the confession of Shahaadah is of no benefit if one continues to worship idols, trees, stones or dead people; or continues to ridicule and insult Islaam, or commits any other act that nullifies their belief in Islaam. They would then be considered Murtad (apostate). Therefore, one who enunciates Shahaadah is considered a Muslim unless they commit an act which renders them Murtad... read more here.