The Book of Oaths (qasamah), Retaliation and Blood Money
45/14, 15: Chapter
Seriousness Of Killing The One With A Covenant (Al-Mu'ahad)1
Sunan an-Nasai
أَخْبَرَنَا مَحْمُودُ بْنُ غَيْلاَنَ، قَالَ حَدَّثَنَا النَّضْرُ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ مَنْصُورٍ، عَنْ هِلاَلِ بْنِ يِسَافٍ، عَنِ الْقَاسِمِ بْنِ مُخَيْمِرَةَ، عَنْ رَجُلٍ، مِنْ أَصْحَابِ النَّبِيِّ صلى الله عليه وسلم أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " مَنْ قَتَلَ رَجُلاً مِنْ أَهْلِ الذِّمَّةِ لَمْ يَجِدْ رِيحَ الْجَنَّةِ وَإِنَّ رِيحَهَا لَيُوجَدُ مِنْ مَسِيرَةِ سَبْعِينَ عَامًا " .
It was narrated from Al-Qasim bin Al-Mukhaimirah, from a man among the Companions of the Prophet, that the Prophet said: "Whoever kills a man from among Ahl Adh-Dhimmah.[2] he will not smell the fragrance of Paradise, and its fragrance may be detected from a distance of seventy years."
Reference : Sunan an-Nasa'i 4749In-book reference : Book 45, Hadith 44English translation : Vol. 5, Book 45, Hadith 4753