Surah Al-Jinn 72:5

وَأَنَّا ظَنَنَّآ أَن لَّن تَقُولَ ٱلْإِنسُ وَٱلْجِنُّ عَلَى ٱللَّهِ كَذِبًا

And we had thought that mankind and the jinn would never speak about Allāh a lie.

Translation: Saheeh International

Tafsir

And we thought that an softened that is to say annahu humans and jinn would never utter a lie against God by attributing such things to Him until we discovered their mendacity thereby. God exalted be He says

Excerpt from Tafsir al-Jalalayn, commentary on 72:5, via Quran.com. The reader has the full commentary and 9 more tafsirs.