17. Prohibited Actions
١٧۔ كتاب الأمور المنهي عنها
You would risk becoming a disbeliever if you call another Muslim a kāfir (disbeliever)
The Messenger of Allah ﷺ said, "If anyone says to his brother O kāfir (disbeliever)! Then surely, one of them such."
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ: «أَيُّمَا رَجُلٍ قَالَ لأَخِيهِ: يَا كَافِرُ، فَقَدْ بَاءَ بِهَا أَحَدُهُمَا۔»
Prohibitions: considering someone else one's father, claiming someone else's property, labeling a Muslim a kāfir (disbeliever) or an enemy of Allah
heard the Messenger of Allah ﷺ say, "No person who claimed someone else as his father other than ˹his own˺ knowingly has committed nothing but kufr (infidelity). He who made a claim of a thing that does not belong to him is not from us and he should prepare his abode in Hellfire."
"And he who labeled anyone with kufr (disbelief) or called him an enemy of Allah while he is not, then it gets ˹thrown˺ back on him."
أَنَّهُ سَمِعَ رَسُولَ اللَّهِ ﷺ يَقُولُ: «لَيْسَ مِنْ رَجُلٍ ادَّعَى لِغَيْرِ أَبِيهِ وَهُوَ يَعْلَمُهُ إِلاَّ كَفَرَ؛ وَمَنِ ادَّعَى مَا لَيْسَ لَهُ فَلَيْسَ مِنَّا وَلْيَتَبَوَّأْ مَقْعَدَهُ مِنَ النَّارِ؛»
«وَمَنْ دَعَا رَجُلاً بِالْكُفْرِ أَوْ قَالَ عَدُوَّ اللَّهِ وَلَيْسَ كَذَلِكَ إِلاَّ حَارَ عَلَيْهِ۔»