And he had recited it to them [perfectly], they would [still] not have been believers in it.
The Saheeh International Quran Translation
فَقَرَأَهُۥ عَلَيْهِم مَّا كَانُوا۟ بِهِۦ مُؤْمِنِينَAnd he had recited it to them [perfectly], they would [still] not have been believers in it.