Surah Al-An'am (The Cattle), Verse 148

سَیَقُوْلُ الَّذِیْنَ اَشْرَكُوْا لَوْ شَآءَ اللّٰهُ مَاۤ اَشْرَكْنَا وَلَاۤ اٰبَآؤُنَا وَلَا حَرَّمْنَا مِنْ شَیْءٍ كَذٰلِكَ كَذَّبَ الَّذِیْنَ مِنْ قَبْلِهِمْ حَتّٰی ذَاقُوْا بَاْسَنَا قُلْ هَلْ عِنْدَكُمْ مِّنْ عِلْمٍ فَتُخْرِجُوْهُ لَنَا اِنْ تَتَّبِعُوْنَ اِلَّا الظَّنَّ وَاِنْ اَنْتُمْ اِلَّا تَخْرُصُوْنَ ۟

Sayaqoolul lazeena ashrakoo law shaaa'al laahu maaa ashraknaa wa laaa aabaaa'unaa wa laa harramnaa min shai'; kazaalika kazzabal lazeena min qablihim hattaa zaaqoo ba'sanaa; qul hal 'indakum min 'ilmin fatukh rijoohu lanaa in tattabi'oona illaz zanna wa in antum illaa takhhrusoon

“Those who give partners (to Allah) will say: "If Allah had wished, we should not have given partners to Him nor would our fathers; nor should we have had any taboos." So did their ancestors argue falsely, until they tasted of Our wrath. Say: "Have ye any (certain) knowledge? If so, produce it before us. Ye follow nothing but conjecture: ye do nothing but lie."”

Quran 6:148 (Yusuf Ali Translation)