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
And whenever Our clear revelations are recited to them, those who do not expect to meet Us say: 'Bring us a Qur'an other than this one, or at least make changes in it. Tell them (O Muhammad): 'It is not for me to change it of my accord. I only follow what is revealed to me. Were I to disobey my Lord, I fear the chastisement of an Awesome Day.