وَاِذَا تُتْلٰى عَلَيْهِمْ اٰيَاتُنَا بَيِّنٰتٍۙ قَالَ الَّذِيْنَ لَا يَرْجُوْنَ لِقَاۤءَنَا ائْتِ بِقُرْاٰنٍ غَيْرِ هٰذَآ اَوْ بَدِّلْهُ ۗ قُلْ مَا يَكُوْنُ لِيْٓ اَنْ اُبَدِّلَهٗ مِنْ تِلْقَاۤئِ نَفْسِيْ ۚاِنْ اَتَّبِعُ اِلَّا مَا يُوْحٰٓى اِلَيَّ ۚ اِنِّيْٓ اَخَافُ اِنْ عَصَيْتُ رَبِّيْ عَذَابَ يَوْمٍ عَظِيْمٍ ( يونس: ١٥ )
Wa izaa tutlaa 'alaihim aayaatunaa baiyinaatin qaalal lazeena laa yarjoona liqaaa'ana'ti bi Quraanin ghairi haazaaa aw baddilh; qul maa yakoonu leee an ubaddilahoo min tilqaaa'i nafsee in attabi'u illaa maa yoohaaa ilaiya inneee akhaafu in 'asaytu Rabbee 'azaaba Yawmin 'Azeeem (al-Yūnus 10:15)
Sahih International:
And when Our verses are recited to them as clear evidences, those who do not expect the meeting with Us say, "Bring us a Quran other than this or change it." Say, [O Muhammad], "It is not for me to change it on my own accord. I only follow what is revealed to me. Indeed I fear, if I should disobey my Lord, the punishment of a tremendous Day." (Yunus [10] : 15)
1 Mufti Taqi Usmani
When Our verses are recited to them in all their clarity, say those who do not believe in meeting Us, “Bring a Qur’ān other than this, or make changes in it (to suit our fancies)”. Say, “It is not possible for me to make changes in it on my own. I follow nothing but what is revealed to me. If I disobey my Lord, I fear the punishment of a terrible day.”