Surah Al-Ahqaf, Verse 11
وَقَالَ ٱلَّذِينَ كَفَرُوا۟ لِلَّذِينَ ءَامَنُوا۟ لَوْ كَانَ خَيْرًۭا مَّا سَبَقُونَآ إِلَيْهِ ۚ وَإِذْ لَمْ يَهْتَدُوا۟ بِهِۦ فَسَيَقُولُونَ هَٰذَآ إِفْكٌۭ قَدِيمٌۭ
Translation — Sahih International
And those who disbelieve say of those who believe, "If it had [truly] been good, they would not have preceded us to it." And when they are not guided by it, they will say, "This is an ancient falsehood."
Source
Kur'an-ı Kerim, Ahkâf Suresi 46:11
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/46-suresi-11-ayet