Al-Furqan - 25:30

وَقَالَ الرَّسُولُ يَا رَبِّ إِنَّ قَوْمِي اتَّخَذُوا هَذَا الْقُرْآنَ مَهْجُورًا
[25:30]
And the Messenger cried out: O my Lord! surely my people have treated this Quran as a forsaken thing.
Then the Messenger will say: "O my Lord! Truly my people took this Qur'an for just foolish nonsense."
And the messenger saith: O my Lord! Lo! mine own folk make this Qur'an of no account.