فَمَن بَدَّلَهُ بَعدَ ما سَمِعَهُ فَإِنَّما إِثمُهُ عَلَى الَّذينَ يُبَدِّلونَهُ ۚ إِنَّ اللَّهَ سَميعٌ عَليمٌ

Then whoever alters the bequest after he has heard it - the sin is only upon those who have altered it. Indeed, Allah is Hearing and Knowing.