Surah Al-Isra, ayah 82

وَنُنَزِّلُ مِنَ ٱلۡقُرۡءَانِ مَا هُوَ شِفَآءٞ وَرَحۡمَةٞ لِّلۡمُؤۡمِنِينَ وَلَا يَزِيدُ ٱلظَّٰلِمِينَ إِلَّا خَسَارٗا ٨٢

Wanunazzilu minal-qur'āni mā huwa shifā'un warahmatul lil-mu'minīna walā yazīduz-zālimīna illā khasārā

And We send down of the Qur’ān that which is healing and mercy for the believers, but it does not increase the wrongdoers except in loss.