Yunus Ayah 36
وَمَا يَتَّبِعُ أَكْثَرُهُمْ إِلَّا ظَنًّاۚ إِنَّ ٱلظَّنَّ لَا يُغْنِى مِنَ ٱلْحَقِّ شَيْــًٔاۚ إِنَّ ٱللَّهَ عَلِيمُۢ بِمَا يَفْعَلُونَ ٣٦
Most of them follow nothing but ?inherited? assumptions. ?And? surely assumptions can in no way replace the truth. Allah is indeed All-Knowing of what they do.