Qur'ān 2:181 · Al-Baqarah (البقرة)

فَمَنۢ بَدَّلَهُۥ بَعْدَ مَا سَمِعَهُۥ فَإِنَّمَآ إِثْمُهُۥ عَلَى ٱلَّذِينَ يُبَدِّلُونَهُۥٓ ۚ إِنَّ ٱللَّهَ سَمِيعٌ عَلِيمٌۭ

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.