﴿مِنَ الْمُؤْمِنِينَ رِجَالٌ صَدَقُوا مَا عَاهَدُوا اللَّهَ عَلَيْهِ ۖ فَمِنْهُمْ مَنْ قَضَىٰ نَحْبَهُ وَمِنْهُمْ مَنْ يَنْتَظِرُ ۖ وَمَا بَدَّلُوا تَبْدِيلًا﴾
23. Among the believers are men who have been true to their covenant with Allâh [i.e. they have gone out for Jihâd (holy fighting), and showed not their backs to the disbelievers]; of them some have fulfilled their obligations (i.e. have been martyred); and some of them are still waiting, but they have never changed [i.e. they never proved treacherous to their covenant which they concluded with Allâh] in the least.[1]