(28) باب بَيَانِ قَوْلِ النَّبِيِّ صلى الله عليه وسلم " سِبَابُ الْمُسْلِمِ فُسُوقٌ وَقِتَالُهُ كُفْرٌ "
Abu Bakr b. Abu Shaiba narrated a hadith like this from the Apostle (may peace and blessings be upon him) on the authority of Abdullah. (RU)
Reference (RU): Sahih Muslim 64 b (RU)
In-book reference (RU): Book 1, Hadith 128 (RU)
USC-MSA web (English) reference(deprecated numbering scheme): Book 1, Hadith 123 (RU)