Surah An-Naba 78:28

وَكَذَّبُوا۟ بِـَٔايَـٰتِنَا كِذَّابًا

And denied Our verses with [emphatic] denial.

Translation: Saheeh International

Tafsir

and they denied Our signs the Qur’ān mendaciously

Excerpt from Tafsir al-Jalalayn, commentary on 78:28, via Quran.com. The reader has the full commentary and 9 more tafsirs.