Narrated that Muhammad ibn Jahsh (RA):
"We were sitting with the Prophet (SAW) when he raised his head towards the sky, then he put his palm on his forehead and said:
The following morning I asked him, “O Messenger of Allaah, what is this strict issue that has been revealed?”
He said:
“By the One in Whose hand is my soul, if a man were killed
~Classed as hasan by Imaam al-Albaani (RH) in Saheeh al-Nasaa’i, 4367.