حَدَّثَنَا عَبْد اللَّهِ قَالَ قَرَأْتُ عَلَى أَبِي حَدَّثَكَ عَلِيُّ بْنُ عَاصِمٍ قَالَ حَدَّثَنَا إِبْرَاهِيمُ الْهَجَرِيُّ عَنْ أَبِي الْأَحْوَصِ عَنْ عَبْدِ اللَّهِ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ سِبَابُ الْمُسْلِمِ أَخَاهُ فُسُوقٌ وَقِتَالُهُ كُفْرٌ وَحُرْمَةُ مَالِهِ كَحُرْمَةِ دَمِهِ
مسند امام احمد بن حنبل · Hadith 4262
It was narrated that 'Abdullah said: The Prophet said: "Trading insults with a Muslim is an evil action and fighting him is kufr . And the sanctity of his wealth is like the sanctity of his blood."
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020