Surah Ar-Rum, Verse 58

وَلَقَدۡ ضَرَبۡنَا لِلنَّاسِ فِي هَٰذَا ٱلۡقُرۡءَانِ مِن كُلِّ مَثَلٖۚ وَلَئِن جِئۡتَهُم بِـَٔايَةٖ لَّيَقُولَنَّ ٱلَّذِينَ كَفَرُوٓاْ إِنۡ أَنتُمۡ إِلَّا مُبۡطِلُونَ٥٨

walaqad ḍarabnā lilnnāsi fī hādhā l-qur'āni min kulli mathalin wala-in ji'tahum biāyatin layaqūlanna alladhīna kafarū in antum illā mub'ṭilūna

And We have certainly presented to the people in this Qur’ān from every [kind of] example. But, [O Muḥammad], if you should bring them a sign, the disbelievers will surely say, "You [believers] are but falsifiers."