وَلَولا أَن كَتَبَ اللَّهُ عَلَيهِمُ الجَلاءَ لَعَذَّبَهُم فِي الدُّنيا ۖ وَلَهُم فِي الآخِرَةِ عَذابُ النّارِ

Had God not decreed their banishment, He would’ve punished them in this world. And in the Hereafter, they will face the torment of the Fire.