Healing verse from the Qur'an: And We reveal of the Qur'an that which is a healing

وَنُنَزِّلُ مِنَ ٱلۡقُرۡءَانِ مَا هُوَ شِفَآءࣱ وَرَحۡمَةࣱ لِّلۡمُؤۡمِنِينَ

Wa nunazzilu minal Qur'aani maa huwa shifaa'un wa rahmatul lil-mu'mineen

And We reveal of the Qur'an that which is a healing and a mercy for believers

Qur'an 17:82 (Al-Isra)