Surah Taha 20:104

نَّحْنُ أَعْلَمُ بِمَا يَقُولُونَ إِذْ يَقُولُ أَمْثَلُهُمْ طَرِيقَةً إِن لَّبِثْتُمْ إِلَّا يَوْمًا

We are most knowing of what they say when the best of them in manner [i.e., wisdom or speech] will say, "You remained not but one day."

Translation: Saheeh International

Tafsir

We know very well what they will say regarding this matter — that is it is not as they say — when the justest the most upright of them in the way in this will say ‘You have tarried only a day’ they will deem their stay in this world as having been very brief on account of the terrors they will witness in the Hereafter.

Excerpt from Tafsir al-Jalalayn, commentary on 20:104, via Quran.com. The reader has the full commentary and 9 more tafsirs.