Surah Aal-E-Imran Ayahs #170 Translated in English

And what struck you on the day the two armies met [at Uḥud] was by permission of Allāh that He might make evident the [true] believers

And that He might make evident those who are hypocrites. For it was said to them, "Come, fight in the way of Allāh or [at least] defend." They said, "If we had known [there would be] battle, we would have followed you." They were nearer to disbelief that day than to faith, saying with their mouths what was not in their hearts. And Allāh is most knowing of what they conceal -

Those who said about their brothers while sitting [at home], "If they had obeyed us, they would not have been killed." Say, "Then prevent death from yourselves, if you should be truthful."

And never think of those who have been killed in the cause of Allāh as dead. Rather, they are alive with their Lord, receiving provision,

Rejoicing in what Allāh has bestowed upon them of His bounty, and they receive good tidings about those [to be martyred] after them who have not yet joined them - that there will be no fear concerning them, nor will they grieve.