Surah Al-An'am 6:91
وَمَا قَدَرُوا۟ ٱللَّهَ حَقَّ قَدْرِهِۦٓ إِذْ قَالُوا۟ مَآ أَنزَلَ ٱللَّهُ عَلَىٰ بَشَرٍ مِّن شَىْءٍ ۗ قُلْ مَنْ أَنزَلَ ٱلْكِتَـٰبَ ٱلَّذِى جَآءَ بِهِۦ مُوسَىٰ نُورًا وَهُدًى لِّلنَّاسِ ۖ تَجْعَلُونَهُۥ قَرَاطِيسَ تُبْدُونَهَا وَتُخْفُونَ كَثِيرًا ۖ وَعُلِّمْتُم مَّا لَمْ تَعْلَمُوٓا۟ أَنتُمْ وَلَآ ءَابَآؤُكُمْ ۖ قُلِ ٱللَّهُ ۖ ثُمَّ ذَرْهُمْ فِى خَوْضِهِمْ يَلْعَبُونَ
And they did not appraise Allāh with true appraisal when they said, "Allāh did not reveal to a human being anything." Say, "Who revealed the Scripture that Moses brought as light and guidance to the people? You [Jews] make it into pages, disclosing [some of] it and concealing much. And you were taught that which you knew not - neither you nor your fathers." Say, "Allāh [revealed it]." Then leave them in their [empty] discourse, amusing themselves.
Translation: Saheeh International
Tafsir
They that is the Jews measured not God with His true measure that is they have not extended Him the grandeur that truly befits Him or it means they have not attained the true knowledge of Him when they said to the Prophet s disputing with him about the Qur’ān ‘God has not revealed anything to any mortal.’ Say to them …
Excerpt from Tafsir al-Jalalayn, commentary on 6:91, via Quran.com. The reader has the full commentary and 9 more tafsirs.