Quran 53:28 — Surah An-Najm, ayah 28

وَمَا لَهُم بِهِۦ مِنۡ عِلۡمٍۖ إِن يَتَّبِعُونَ إِلَّا ٱلظَّنَّۖ وَإِنَّ ٱلظَّنَّ لَا يُغۡنِي مِنَ ٱلۡحَقِّ شَيۡـٔٗا

And they have thereof no knowledge. They follow not except assumption, and indeed, assumption avails not against the truth at all

a o tome ništa ne znaju, slijede samo pretpostavke, a pretpostavka istini baš nimalo ne koristi.