(198) بَابُ السِّبَابِ
'Abdullah said, "When a man says to his companion, 'You are myenemy,' then one of them has left Islam or he is innocent of what his companionsaid.'" (ID)
Reference (ID): Al-Adab Al-Mufrad 421 (ID)
In-book reference (ID): Book 24, Hadith 3 (ID)
English translation (ID): Book 24, Hadith 421 (ID)