The Book on Faith
40/16. Chapter:
What Has Been Related About The One Who Accuses His Brother Of Disbelief
Jami at-Tirmidhi
حَدَّثَنَا قُتَيْبَةُ، عَنْ مَالِكِ بْنِ أَنَسٍ، عَنْ عَبْدِ اللَّهِ بْنِ دِينَارٍ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " أَيُّمَا رَجُلٍ قَالَ لأَخِيهِ كَافِرٌ فَقَدْ بَاءَ بِهِ أَحَدُهُمَا " . هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ غَرِيبٌ . وَمَعْنَى قَوْلِهِ بَاءَ يَعْنِي أَقَرَّ .
Narrated Ibn 'Umar: Ibn 'Umar Narrated That The Prophet (ﷺ) Said: "Whoever Says To His Brother 'Disbeliever' Then It Will Have Settled Upon One Of Them." Sahih
Reference : Jami` at-Tirmidhi 2637In-book reference : Book 40, Hadith 32English translation : Vol. 5, Book 38, Hadith 2637