Sunan Ibn Majah 3941
It was narrated from Sa’d that the Messenger of Allah ﷺ said:
“Verbally abusing a Muslim is Fusuq (disobedience) and fighting him is Kufr.”
حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ، حَدَّثَنَا وَكِيعٌ، عَنْ شَرِيكٍ، عَنْ أَبِي إِسْحَاقَ، عَنْ مُحَمَّدِ بْنِ سَعْدٍ، عَنْ سَعْدٍ، قَالَ قَالَ رَسُولُ اللَّهِ ـ ﷺ ـ " سِبَابُ الْمُسْلِمِ فُسُوقٌ وَقِتَالُهُ كُفْرٌ " .
Classification
Sahih (Authentic) [Darussalam]
References
Sunan Ibn Majah 3941
Sunan Ibn Majah Vol. 5, Book of Tribulations, Hadith 3941