Whoever says 'lā ilāha illa Allah (there is no god but Allah)' and disbelieves in everything worshiped besides Allah, his property and blood becomes inviolable, and his reckoning will be with Allah
Chapter: The command to fight the people until they say "La ilaha illallah Muhammad Rasul-Allah", and establish Salat, and pay the Zakat, and believe in everything that the prophet (saws) brought. Whoever does that, his life and his wealth are protected except by its right, and his secrets are entrusted to Allah, the most high. Fighting those who withhold Zakat or other than that is one of the duties of Islam and the Imam should be concerned with the Laws of Islam
Tāriq ibn Ashīm al-Ashja‘i (may Allah be pleased with him) reported: I heard the Messenger of Allah (may Allah’s peace and blessings be upon him) say:
"Whoever says 'lā ilāha illa Allah (there is no god but Allah)' and disbelieves in everything worshiped besides Allah, his property and blood becomes inviolable, and his reckoning will be with Allah."
The Prophet (may Allah's peace and blessings be upon him) informs that if a person says and bears witness that "there is no god but Allah" - which means that none is truly worthy of worship except Allah - and disbelieves in everything worshiped apart from Allah and disavows all other religions besides Islam, his property and blood become inviolable to the Muslims. We only judge according to his apparent reality. So, his property may not be taken, or his blood be shed unless he commits a crime or an offence that entails such punishment as per Islamic laws.
And Allah will be responsible for his reckoning on the Day of Judgment. If he is sincere, He will reward him, and if he is insincere, He will punish him.
Lessons
Uttering "there is no god but Allah" and disbelieving in all that is worshiped other than Allah is a prerequisite for entering Islam.
The meaning of "there is no god but Allah" is to disbelieve in all that is worshiped besides Allah, such as idols, graves, and other things, and to devote worship to Allah Almighty alone.
Whoever holds the belief of Tawhīd (monotheism) and outwardly adheres to its ordinances should be spared any harm until he shows something contrary to that.
The property, blood, and honor of a Muslim are inviolable, unless for a just cause.
Judgment in worldly life depends on the outward aspect, whereas in the Hereafter, it depends on intentions and objectives.
Explanation in Arabic
يُخبِرُ النَّبيُّ صلَّى اللهُ عليه وسلَّمَ أنَّ مَن قالَ وشَهِدَ بلِسانِه أنَّه «لا إلهَ إلَّا اللهُ»، أي: لا مَعبودَ بِحَقٍّ إلا اللهُ، وكفَرَ بما يُعبَدُ من دُونِ اللهِ، وتَبرَّأ من كلِّ الأديانِ سِوى الإسلامِ، فقد حَرُمَ مالُه ودمُه على المُسلِمينَ، فليس لنا إلا الظاهر من عمله، فلا يُسلَبُ مالُه ولا يُسفَكُ دمُه، إلَّا إذا ارتكَبَ جَريمةً أو جِنايةً توجب ذلك بمُوجِبِ أحكامِ الإسلامِ.
والله يتولَّى حسابَهُ يوم القيامة، فإن كان صادقًا أثابه، وإن كان منافقًا عَذَّبه.
النُّطْقُ بلا إله إلا الله، والكفر بكلِّ ما يُعبد من دون الله، شرطٌ في دخول الإسلام.
معنى (لا إله إلا الله) هو الكفر بكل ما يُعبد من دون الله من الأصنام والقبور وغيرها، وإفراده سبحانه بالعبادة.
من أتى بالتوحيد والتَزمَ شرائعه ظاهرًا وَجَبَ الكَفُّ عنه حتى يَتَبَيَّنَ منه ما يخالف ذلك.
حُرْمةُ مالِ المسلم ودمِه وعرضِه إلا بحق.
الحُكْم في الدنيا على الظاهر، وفي الآخرة على النيات والمقاصد.
