Surah At-Tawbah 9:80

ٱسْتَغْفِرْ لَهُمْ أَوْ لَا تَسْتَغْفِرْ لَهُمْ إِن تَسْتَغْفِرْ لَهُمْ سَبْعِينَ مَرَّةً فَلَن يَغْفِرَ ٱللَّهُ لَهُمْ ۚ ذَٰلِكَ بِأَنَّهُمْ كَفَرُوا۟ بِٱللَّهِ وَرَسُولِهِۦ ۗ وَٱللَّهُ لَا يَهْدِى ٱلْقَوْمَ ٱلْفَـٰسِقِينَ

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.

Translation: Saheeh International

Tafsir

Ask forgiveness for them O Muhammad (s) or do not ask forgiveness for them this leaves the choice of asking forgiveness or refraining up to him; the Prophet s said ‘I have been given the choice and I made it’ meaning the choice to ask forgiveness as reported by al-Bukhārī. …

Excerpt from Tafsir al-Jalalayn, commentary on 9:80, via Quran.com. The reader has the full commentary and 9 more tafsirs.