Arabic (Original)
حَدَّثَنَا وَكِيعٌ عَنْ سُفْيَانَ عَنْ عَبْدِ اللَّهِ بْنِ دِينَارٍ عَنِ ابْنِ عُمَرَ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَيُّمَا امْرِئٍ قَالَ لِأَخِيهِ يَا كَافِرُ فَقَدْ بَاءَ بِهَا أَحَدُهُمَا.
English Translation
Waki' narrated to us, from Sufyan, from 'Abd Allah ibn Dinar, from Ibn 'Umar, who said: The Messenger of Allah, peace and blessings be upon him, said: 'Whenever a man says to his brother: O disbeliever! then one of the two has indeed earned it.'