(1) باب مَا أَنْزَلَ اللَّهُ دَاءً إِلاَّ أَنْزَلَ لَهُ شِفَاءً
Narrated Abu Huraira:
The Prophet (ﷺ) said, "There is no disease that Allah has created, except that He also has created its treatment."
Reference: Sahih al-Bukhari 5678
In-book reference: Book 76, Hadith 1
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 71, Hadith 582