عَنْ أَبِي هُرَيْرَةَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَا أَنْزَلَ اللَّهُ دَاء إِلا أنزل لَهُ دَوَاء» . رَوَاهُ البُخَارِيّ

Jabir reported God's messenger as saying

“There is a medicine for every disease, and when the medicine is applied to the disease it is cured by God’s permission.” Muslim transmitted it.