مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 3552
Retaliation
Killing Apostates and People who Strive to cause Mischief - Section 3
عَن أُسَامَةَ بْنِ شَرِيكٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «أَيُّمَا رَجُلٍ خَرَجَ يُفَرِّقُ بَيْنَ أُمَّتِي فَاضْرِبُوا عُنُقَهُ» . رَوَاهُ النَّسَائِيُّ
Usama b. Sharik reported God’s Messenger as saying, “Cut off the head of any man who goes out and causes division among my people.” Nasa’i transmitted it.
Mishkat al-Masabih, 3552لم تتمّ دراسته (الألباني)