Surah At-Tawbah, ayah 111

9:111

۞ إِنَّ ٱللَّهَ ٱشۡتَرَىٰ مِنَ ٱلۡمُؤۡمِنِينَ أَنفُسَهُمۡ وَأَمۡوَٰلَهُم بِأَنَّ لَهُمُ ٱلۡجَنَّةَۚ يُقَٰتِلُونَ فِي سَبِيلِ ٱللَّهِ فَيَقۡتُلُونَ وَيُقۡتَلُونَۖ وَعۡدًا عَلَيۡهِ حَقّٗا فِي ٱلتَّوۡرَىٰةِ وَٱلۡإِنجِيلِ وَٱلۡقُرۡءَانِۚ وَمَنۡ أَوۡفَىٰ بِعَهۡدِهِۦ مِنَ ٱللَّهِۚ فَٱسۡتَبۡشِرُواْ بِبَيۡعِكُمُ ٱلَّذِي بَايَعۡتُم بِهِۦۚ وَذَٰلِكَ هُوَ ٱلۡفَوۡزُ ٱلۡعَظِيمُ ١١١

Innallāhashtarā minal-mu'minīna anfusahum wa amwālahum bi anna lahumul-jannata yuqātilūna fī sabīlillāhi fayaqtulūna wayuqtalūna wa'dan 'alayhi haqqan fit-tawrāti wal-injīli wal-qur'āni waman awfā bi'ahdihī minallāhi fastabshirū bibay'ikumul-ladhī bāya'tum bihī wadhālika huwal-fawzul-'azīm

Indeed, Allāh has purchased from the believers their lives and their properties [in exchange] for that they will have Paradise. They fight in the cause of Allāh, so they kill and are killed. [It is] a true promise [binding] upon Him in the Torah and the Gospel and the Qur’ān. And who is truer to his covenant than Allāh? So rejoice in your transaction which you have contracted. And it is that which is the great attainment.