O you who have believed, do not be like those who disbelieved (3:156)

﴿يَا أَيُّهَا الَّذِينَ آمَنُوا لَا تَكُونُوا كَالَّذِينَ كَفَرُوا وَقَالُوا لِإِخْوَانِهِمْ إِذَا ضَرَبُوا فِي الْأَرْضِ أَوْ كَانُوا غُزًّى لَّوْ كَانُوا عِندَنَا مَا مَاتُوا وَمَا قُتِلُوا لِيَجْعَلَ اللَّهُ ذَٰلِكَ حَسْرَةً فِي قُلُوبِهِمْ ۗ وَاللَّهُ يُحْيِي وَيُمِيتُ ۗ وَاللَّهُ بِمَا تَعْمَلُونَ بَصِيرٌ﴾
[ آل عمران: 156]

3:156 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 Allah makes that [misconception] a regret within their hearts. And it is Allah who gives life and causes death, and Allah is Seeing of what you do.

O you who have faith in Allah and follow His Prophet, do not be like those among the hypocrites who disbelieve, who do not have faith in destiny and Allah’s decree, and who say of their relatives if they travel to earn a living or go out to fight and they die or are killed: If they had stayed with us, and not gone or not fought, then they would not have died or been killed.
Allah makes this belief in their hearts increase their regret.
Allah alone gives life and death as He wills: staying behind would not stop His decree, and going would not bring it more quickly.
Allah sees what you do.
None of what you do is hidden from Him and you will be rewarded according to what you do.

O you who believe! Be not like those who disbelieve (hypocrites) and who say to their brethren when they travel through the earth or go out to fight: "If they had stayed with us, they would not have died or been killed," so that Allah may make it a cause of regret in their hearts. It is Allah that gives life and causes death. And Allah is All-Seer of what you do.

phonetic Transliteration

Ya ayyuha allatheena amanoo la takoonoo kaallatheena kafaroo waqaloo liikhwanihim itha daraboo fee alardi aw kanoo ghuzzan law kanoo AAindana ma matoo wama qutiloo liyajAAala Allahu thalika hasratan fee quloobihim waAllahu yuhyee wayumeetu waAllahu bima taAAmaloona baseerun

Abdullah Yusuf Ali - Translation

O ye who believe! Be not like the Unbelievers, who say of their brethren, when they are travelling through the Earth or engaged in fighting: "If they had stayed with us, they would not have died, or been slain." This that Allah may make it a cause of sighs and regrets in their hearts. It is Allah that gives Life and Death, and Allah sees well all that ye do.

Safi-ur-Rahman al-Mubarakpuri

O you who believe! Be not like those who disbelieve and who say to their brethren when they travel through the earth or go out to fight: "If they had stayed with us, they would not have died or been killed," so that Allah may make it a cause of regret in their hearts. It is Allah that gives life and causes death. And Allah is All-Seer of what you do.

Page 70 English transliteration