(5) باب إِثْمِ مَنْ قَتَلَ مُعَاهَدًا بِغَيْرِ جُرْمٍ
Narrated `Abdullah bin `Amr:
The Prophet (ﷺ) said, "Whoever killed a person having a treaty with the Muslims, shall not smell the smell of Paradise though its smell is perceived from a distance of forty years." (ID)
Reference (ID): Sahih al-Bukhari 3166 (ID)
In-book reference (ID): Book 58, Hadith 8 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 53, Hadith 391 (ID)