3:154Then after the setback, He sent down security upon you. Slumber overcame some of you, while others cared only for themselves, thinking of God thoughts that were untrue—thoughts of ignorance—saying, “Is anything up to us?” Say, “Everything is up to God.” They conceal within themselves what they do not reveal to you. And they say, “If it was up to us, none of us would have been killed here.” Say, “Even if you Had stayed in your homes, those destined to be killed would have marched into their death beds.” God thus tests what is in your minds, and purifies what is in your hearts. God knows what the hearts contain.

3:156O you who believe! Do not be like those who disbelieved, and said of their brethren who marched in the land, or went on the offensive, “Had they stayed with us, they would not have died or been killed.” So that God may make it a cause of regret in their hearts. God gives life and causes death. God is Seeing of what you do.

3:168Those who said of their brethren, as they stayed behind, “Had they obeyed us, they would not have been killed.” Say, “Then avert death from yourselves, if you are truthful.”