Surah Al-Kahf (The Cave), Verse 5

مَا لَهُمْ بِهٖ مِنْ عِلْمٍ وَّلَا لِاٰبَآىِٕهِمْ كَبُرَتْ كَلِمَةً تَخْرُجُ مِنْ اَفْوَاهِهِمْ اِنْ یَّقُوْلُوْنَ اِلَّا كَذِبًا ۟

Maa lahum bihee min 'ilminw wa laa li aabaaa'ihim; kaburat kalimatan takhruju min afwaahihim; iny yaqooloona illaa kazibaa

“No knowledge have they of such a thing, nor had their fathers. It is a grievous thing that issues from their mouths as a saying what they say is nothing but falsehood!”

Quran 18:5 (Yusuf Ali Translation)