Verse 15

وَإِذَا تُتْلَىٰ عَلَيْهِمْ ءَايَاتُنَا بَيِّنَـٰتٍ قَالَ ٱلَّذِينَ لَا يَرْجُونَ لِقَآءَنَا ٱئْتِ بِقُرْءَانٍ غَيْرِ هَـٰذَآ أَوْ بَدِّلْهُ قُلْ مَا يَكُونُ لِىٓ أَنْ أُبَدِّلَهُۥ مِن تِلْقَآئِ نَفْسِىٓ إِنْ أَتَّبِعُ إِلَّا مَا يُوحَىٰٓ إِلَىَّ إِنِّىٓ أَخَافُ إِنْ عَصَيْتُ رَبِّى عَذَابَ يَوْمٍ عَظِيمٍ

And when Our proven Signs are recited to them, those who have given up in meeting Us say, bring another Quran or change it. Say, I can never change it according to my own wishes; I only follow what is inspired to me. I do indeed fear the suffering of a Great Day if I disobey my Lord.