'Abdullah Ibn 'Umar (RAA) narrated that The Messenger of Allah (ﷺ) said:

“Whoever kills a Mu'ahid will not smell the fragrance of Paradise, even though its fragrance could be smelt at a distance of forty years.” Related by Al-Bukhari.

وَعَنْ عَبْدِ اَللَّهِ بْنِ عَمْرِو ٍ ; [1]‏ عَنْ اَلنَّبِيِّ ‏- صلى الله عليه وسلم ‏-قَالَ: {

مِنْ قَتْلِ مُعَاهِداً لَمْ يَرَحْ رَائِحَةَ اَلْجَنَّةِ, وَإِنَّ رِيحَهَا لِيُوجَدَ مِنْ مَسِيرَةِ أَرْبَعِينَ عَامّاً

} أَخْرَجَهُ اَلْبُخَارِيّ ُ [2]‏ .‏