Surah As-Saffat 37:14
وَإِذَا رَأَوْا۟ ءَايَةً يَسْتَسْخِرُونَ
And when they see a sign, they ridicule.
Translation: Saheeh International
Tafsir
and when they see a sign such as the splitting of the moon cf. Q. 541 they make it an object of ridicule they deride it.
Excerpt from Tafsir al-Jalalayn, commentary on 37:14, via Quran.com. The reader has the full commentary and 9 more tafsirs.