Dalil

Al-Adab Al-Mufrad 439

Someone says calls his brother an unbeliever

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حَدَّثَنَا إِسْمَاعِيلُ قَالَ حَدَّثَنَا مَالِكٌ عَنْ عَبْدِ اللهِ بْنِ دِينَارٍ عَنْ عَبْدِ اللهِ بْنِ عُمَرَ

أَنَّ رَسُولَ اللهِ ﷺ قَالَ أَيُّمَا رَجُلٌ قَالَ لأَخِيهِ كَافِرٌ فَقَدْ بَاءَ بِهَا أَحَدُهُمَا

Translation

✧ The Messenger of Allah ﷺ said, 'Any man who says to his brother, "Unbeliever," then one of them has returned with it.'

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