Surah Taha 20:109

يَوْمَئِذٍ لَّا تَنفَعُ ٱلشَّفَـٰعَةُ إِلَّا مَنْ أَذِنَ لَهُ ٱلرَّحْمَـٰنُ وَرَضِىَ لَهُۥ قَوْلًا

That Day, no intercession will benefit except [that of] one to whom the Most Merciful has given permission and has accepted his word.

Translation: Saheeh International

Tafsir

On that day intercession will not profit anyone except intercession from him whom the Compassionate One permits that he intercede for such a person and whose word He approves that is to say because such an intercessor will say ‘there is no god but God’ lā ilāha illā’Llāh.

Excerpt from Tafsir al-Jalalayn, commentary on 20:109, via Quran.com. The reader has the full commentary and 9 more tafsirs.