Hadith 2620
Chapter 1: The Severity Of Killing A Muslim - كتاب الديات
حَدَّثَنَا عَمْرُو بْنُ رَافِعٍ، حَدَّثَنَا مَرْوَانُ بْنُ مُعَاوِيَةَ، حَدَّثَنَا يَزِيدُ بْنُ زِيَادٍ، عَنِ الزُّهْرِيِّ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ أَعَانَ عَلَى قَتْلِ مُؤْمِنٍ بِشَطْرِ كَلِمَةٍ لَقِيَ اللَّهَ عَزَّ وَجَلَّ مَكْتُوبٌ بَيْنَ عَيْنَيْهِ آيِسٌ مِنْ رَحْمَةِ اللَّهِ " .
It was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said:
“Whoever helps to kill a believer, even with half a world, he will meet Allah (SWT) with (the words) written between his eyes, 'He has no hope of the mercy of Allah (SWT).”
Reference : Sunan Ibn Majah 2620
In-book reference : Book 21, Hadith 6