Quran 3:168 — The Amramites (Ali-'Imran)

They said of their kinsmen, as they stayed behind, "Had they obeyed us, they would not have been killed." Say, "Then prevent your own death, if you are truthful."

[3:167] And to expose the hypocrites who were told, "Come fight in the cause of GOD, or contribute." They said, "If we knew how to fight, we would have joined you." They were closer to disbelief then than they were to belief. They uttered with their mouths what was not in their hearts. GOD knows what they conceal.

[3:169] Do not think that those who are killed in the cause of GOD are dead; they are alive at their Lord, enjoying His provisions.