Imran bin Husain narrated that the Messenger of Allah (s.a.w) prohibited cauterization. He said:
"We were tested (with severe medical condition) so we were cauterized, but we did not have good results, nor was it successful for us." (ES)
English reference (ES): Vol. 4, Book 2, Hadith 2049 (ES)
Arabic reference (ES): Book 28, Hadith 2186 (ES)