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.

وَعَنْ جَابِرٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «لِكُلِّ دَاءٍ دَوَاءٌ فَإِذَا أُصِيبَ دَوَاءٌ الدَّاءَ بَرَأَ بِإِذْنِ اللَّهِ» . رَوَاهُ مُسلم