﴿ وَٱلَّذِينَ هَاجَرُوا۟ فِى سَبِيلِ ٱللَّهِ ثُمَّ قُتِلُوٓا۟ أَوْ مَاتُوا۟ لَيَرْزُقَنَّهُمُ ٱللَّهُ رِزْقًا حَسَنًۭا ۚ وَإِنَّ ٱللَّهَ لَهُوَ خَيْرُ ٱلرَّٰزِقِينَ ﴾

“AND AS FOR those who forsake the domain of evil (and strive) in God’s cause, and then are slain or die - God will most certainly provide for them a goodly sustenance [in the life to come] for, verily, God - He alone - is the best of providers;”

Commentary Those people who had left their hearth and homes in the cause of Allah and were killed or died of natural death, they would definitely be rewarded. If they have not benefited in this world, their reward will be there in the Hereafter.