Al-An'am - 6:91

وَمَا قَدَرُواْ اللّهَ حَقَّ قَدْرِهِ إِذْ قَالُواْ مَا أَنزَلَ اللّهُ عَلَى بَشَرٍ مِّن شَيْءٍ قُلْ مَنْ أَنزَلَ الْكِتَابَ الَّذِي جَاء بِهِ مُوسَى نُورًا وَهُدًى لِّلنَّاسِ تَجْعَلُونَهُ قَرَاطِيسَ تُبْدُونَهَا وَتُخْفُونَ كَثِيراً وَعُلِّمْتُم مَّا لَمْ تَعْلَمُواْ أَنتُمْ وَلاَ آبَاؤُكُمْ قُلِ اللّهُ ثُمَّ ذَرْهُمْ فِي خَوْضِهِمْ يَلْعَبُونَ
[6:91]
And they do not assign to Allah the attributes due to Him when they say: Allah has not revealed anything to a mortal. Say: Who revealed the Book which Musa brought, a light and a guidance to men, which you make into scattered writings which you show while you conceal much? And you were taught what you did not know, (neither) you nor your fathers. Say: Allah then leave them sporting in their vain discourses.
No just estimate of Allah do they make when they say: "Nothing doth Allah send down to man (by way of revelation)" Say: "Who then sent down the Book which Moses brought?- a light and guidance to man: But ye make it into (separate) sheets for show, while ye conceal much (of its contents): therein were ye taught that which ye knew not- neither ye nor your fathers." Say: "Allah (sent it down)": Then leave them to plunge in vain discourse and trifling.
And they measure not the power of Allah its true measure when they say: Allah hath naught revealed unto a human being. Say (unto the Jews who speak thus): Who revealed the Book which Moses brought, a light and guidance for mankind, which ye have put on parchments which ye show, but ye hide much (thereof), and (by which) ye were taught that which ye knew not yourselves nor (did) your fathers (know it)? Say: Allah. Then leave them to their play of cavilling.