مَنْ قَتَلَ مُعَاهَدًا، لَمْ يَرِحْ رَائِحَةَ الْجَنَّةِ
Whoever unlawfully kills a person protected by a covenant will not smell the fragrance of Paradise.
Source: البخاري
مُعَاهَدًا is a person protected by a covenant or guarantee of safety. قَتَلَ is the past-tense verb “killed,” with مُعَاهَدًا as its object. In لَمْ يَرِحْ, لَمْ negates the action; رَائِحَةَ الْجَنَّةِ means the fragrance of Paradise.
The report gives an emphatic warning against killing a person whose safety is protected by covenant. A person's life cannot be dismissed because of their background or religion. Respect for commitments, human life, and the safety of protected persons is the central lesson here.