Aal-i-Imraan • EN-AL-JALALAYN
﴿ إِنَّ ٱلَّذِينَ كَفَرُوا۟ بَعْدَ إِيمَٰنِهِمْ ثُمَّ ٱزْدَادُوا۟ كُفْرًۭا لَّن تُقْبَلَ تَوْبَتُهُمْ وَأُو۟لَٰٓئِكَ هُمُ ٱلضَّآلُّونَ ﴾
“Verily, as for those who are bent on denying the truth after having attained to faith, and then grow [ever more stubborn] in their refusal to acknowledge the truth, their repentance [of other sins] shall not be accepted: for it is they who have truly gone astray.”
The following was revealed regarding the Jews Surely those who disbelieve in Jesus after they have believed in Moses and then increase in unbelief in Muhammad (s) — their repentance shall not be accepted when they are drawing their last gasps of life or when they have died as disbelievers; those are the ones who go astray.