Surah Al-Baqarah, Verse 181

فَمَنۢ بَدَّلَهُۥ بَعۡدَ مَا سَمِعَهُۥ فَإِنَّمَآ إِثۡمُهُۥ عَلَى ٱلَّذِينَ يُبَدِّلُونَهُۥٓۚ إِنَّ ٱللَّهَ سَمِيعٌ عَلِيمٞ١٨١

faman baddalahu baʿdamā samiʿahu fa-innamā ith'muhu ʿalā alladhīna yubaddilūnahu inna al-laha sami'un alimun

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