At-Tawbah 9:80

Istaghfir lahum aw la tastaghfirlahum in tastaghfir lahum sabAAeena marratan falan yaghfira Allahulahum thalika bi-annahum kafaroo billahiwarasoolihi wallahu la yahdee alqawma alfasiqeen

Ask forgiveness for them, [O Muḥammad], or do not ask forgiveness for them. If you should ask forgiveness for them seventy times - never will Allāh forgive them. That is because they disbelieved in Allāh and His Messenger, and Allāh does not guide the defiantly disobedient people.

(It is all equal whether you) ask pardon for them or do not ask pardon for them. Even if you ask pardon for them seventy times, Allah will never pardon them. That is because they disbelieved in Allah and His Messenger. Allah does not lead the sinning people to the right path.