"the Messenger of Allah said: 'Whoever practices medicine when he is not known for that, he is liable.(Daif)
Sunan an-Nasa'i Book 45, Hadith 125
← Previous Hadith "The Messenger of Allah ruled that every clan should take part in paying the blood money, and it is not permissible for a freed slave to take a Muslim (other than the one who freed him) as his Mawla (Patron) without the permission (of his former master who set him free)"

Sunan an-Nasa'i Book 45, Hadith 124 Next Hadith → A similar report was narrated from 'Amr bin shu'aib, from his father, from his grandfather. (Daif)

Sunan an-Nasa'i Book 45, Hadith 126