78:28
وَكَذَّبُوا۟ بِـَٔايَـٰتِنَا كِذَّابًا
wakadhabū biāyātinā kidhāban
and they rejected Our messages as lies.
But they belied Our Ayât (proofs, evidence, verses, lessons, signs, revelations, and that which Our Prophet صلى الله عليه وسلم brought) completely.