Ali 'Imran 3:156

Ya ayyuha allatheena amanoola takoonoo kallatheena kafaroo waqalooli-ikhwanihim itha daraboo fee al-ardiaw kanoo ghuzzan law kanoo AAindana mamatoo wama qutiloo liyajAAala Allahu thalikahasratan fee quloobihim wallahu yuhyeewayumeetu wallahu bima taAAmaloona baseer

O you who have believed, do not be like those who disbelieved and said about their brothers when they traveled through the land or went out to fight, "If they had been with us, they would not have died or have been killed," so Allāh makes that [misconception] a regret within their hearts. And it is Allāh who gives life and causes death, and Allāh is Seeing of what you do.

O you who believe, do not be like those who disbelieved and said about their brethren while they travelled on the earth or had to fight, “Had they been with us, they would have not died, nor would they have been killed.” The result is that Allah makes it a remorse resting in their hearts. Allah gives life and brings death; Allah is watchful of what you do.