Allah has not sent down any disease except that He has also sent down the cure for it
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ، حَدَّثَنَا سُفْيَانُ، عَنْ عَطَاءِ بْنِ السَّائِبِ، عَنْ أَبِي عَبْدِ الرَّحْمَنِ، عَنْ عَبْدِ اللَّهِ، عَنِ النَّبِيِّ ـ صلى الله عليه وسلم ـ قَالَ " مَا أَنْزَلَ اللَّهُ دَاءً إِلاَّ أَنْزَلَ لَهُ دَوَاءً " .
It was narrated from ‘Abdullah that the Prophet (ﷺ) said: “Allah does not send down any disease, but He also sends down the cure for it.”