Abu Hurairah narrated:
"The Messenger of Allah (s.a.w) forbade from cures that are Khabith." [Abu 'Elsa said:] Meaning poison (JA)
English reference (JA): Vol. 4, Book 2, Hadith 2045 (JA)
Arabic reference (JA): Book 28, Hadith 2181 (JA)