22:58
وَٱلَّذِينَ هَاجَرُوا۟ فِى سَبِيلِ ٱللَّهِ ثُمَّ قُتِلُوٓا۟ أَوْ مَاتُوا۟ لَيَرْزُقَنَّهُمُ ٱللَّهُ رِزْقًا حَسَنًۭا ۚ وَإِنَّ ٱللَّهَ لَهُوَ خَيْرُ ٱلرَّٰزِقِينَ
And those who emigrated for the cause of Allah and then were killed or died - Allah will surely provide for them a good provision. And indeed, it is Allah who is the best of providers.
Translation · Saheeh International
Tafsir
Ibn Kathīr (abridged)
The Great Reward for Those Who migrate in the Cause of Allah
Allah tells us that those who migrate for the sake of Allah, seeking to earn His pleasure and that which is with Him, leaving behind their homelands, families and friends, leaving their countries for the sake of Allah and His Messenger to support His religion, then they are killed, i.e., in Jihad, or they die, i.e., they pass away without being involved in fighting, they will have earned an immense reward. As Allah says:
وَمَن يَخْرُجْ مِن بَيْتِهِ مُهَـجِراً إِلَى اللَّهِ وَرَسُولِهِ ثُمَّ يُدْرِكْهُ الْمَوْتُ فَقَدْ وَقَعَ أَجْرُهُ عَلىَ اللَّهِ
(And whosoever leaves his home as an emigrant unto Allah and His Messenger, and death overtakes him, his reward is then surely incumbent upon Allah) 4:100
لَيَرْزُقَنَّهُمُ اللَّهُ رِزْقاً حَسَناً
(surely, Allah will provide a good provision for them.) means, He will reward them from His bounty and provision in Paradise with that which will bring them joy.