فَمَنۢ بَدَّلَهُۥ بَعْدَ مَا سَمِعَهُۥ فَإِنَّمَآ إِثْمُهُۥ عَلَى ٱلَّذِينَ يُبَدِّلُونَهُۥٓ ۚ إِنَّ ٱللَّهَ سَمِيعٌ عَلِيمٌ
Famam baddalahoo ba'da maa sami'ahoo fa innamaaa ismuhoo 'alallazeena yubaddi loonah; innallaha Samee'un 'Aleem
Whoever alters it after hearing it — the sin falls only on those who alter it. God is all-hearing, all-knowing.