Tafsir of Surah An-Najm 53:28
﴿وَمَا لَهُم بِهِ مِنْ عِلْمٍ إِن يَتَّبِعُونَ إِلَّا الظَّنَّ وَإِنَّ الظَّنَّ لَا يُغْنِي مِنَ الْحَقِّ شَيْئًا﴾
Translation of the meaning
And they have thereof no knowledge. They follow not except assumption, and indeed, assumption avails not against the truth at all.
English Translation - Noor International Center — v1.1.2 · QuranEnc.comThe words of the two imams are given in their original Arabic, verbatim, with references.
Shaykh al-Islam Ibn Taymiyyah
فهذه عدة مواضع يذم الله فيها الذين لا يتبعون إلا الظن«مجموع الفتاوى» 13/110