Sahih Muslim | Book 26 | Chapter 27

Narrated by Abu Huraira
Abu Huraira reported that he heard Allah's Messenger (may peace be upon him) as saying: Nigella seed is a remedy for every disease except death. This hadith has been narrated through another chain of transmitters but with a slight variation of wording.

Narrated by Abu Huraira
Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: There is no disease for which Nigella seed does not provide remedy.