وَأَنَّا ظَنَنَّآ أَن لَّن تَقُولَ ٱلْإِنسُ وَٱلْجِنُّ عَلَى ٱللَّهِ كَذِبًا
Wa annaa zanannaaa al lan taqoolal insu wal jinnu 'alal laahi kazibaa
although we had thought that no man or jinn would [dare to] tell a lie about Him.
And we had assumed that neither humans nor jinn would ever speak a lie about God.