Surah Az-Zumar 39:44

قُل لِّلَّهِ ٱلشَّفَـٰعَةُ جَمِيعًا ۖ لَّهُۥ مُلْكُ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضِ ۖ ثُمَّ إِلَيْهِ تُرْجَعُونَ

Say, "To Allāh belongs [the right to allow] intercession entirely. To Him belongs the dominion of the heavens and the earth. Then to Him you will be returned."

Translation: Saheeh International

Tafsir

Say ‘All intercession belongs solely to God that is to say He has exclusive control over it and so none can intercede except with His permission. To Him belongs the kingdom of the heavens and the earth; then to Him you will be brought back’.

Excerpt from Tafsir al-Jalalayn, commentary on 39:44, via Quran.com. The reader has the full commentary and 9 more tafsirs.