Clear Quran
Ali 'Imran · 3:90
إِنَّ الَّذِينَ كَفَرُوا بَعْدَ إِيمَانِهِمْ ثُمَّ ازْدَادُوا كُفْرًا لَنْ تُقْبَلَ تَوْبَتُهُمْ وَأُولَٰئِكَ هُمُ الضَّالُّونَ
Indeed, those who disbelieve after having believed then increase in disbelief, their repentance will never be accepted. It is they who are astray.