Surah Ar-Room, Verse 58
وَلَقَدْ ضَرَبْنَا لِلنَّاسِ فِى هَٰذَا ٱلْقُرْءَانِ مِن كُلِّ مَثَلٍۢ ۚ وَلَئِن جِئْتَهُم بِـَٔايَةٍۢ لَّيَقُولَنَّ ٱلَّذِينَ كَفَرُوٓا۟ إِنْ أَنتُمْ إِلَّا مُبْطِلُونَ
Translation — Sahih International
And We have certainly presented to the people in this Qur'an from every [kind of] example. But, [O Muhammad], if you should bring them a sign, the disbelievers will surely say, "You [believers] are but falsifiers."
Source
Kur'an-ı Kerim, Rûm Suresi 30:58
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/30-suresi-58-ayet