Hadith 1723
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، قَالَ بَلَغَنِي أَنَّ سَعْدَ بْنَ زُرَارَةَ، اكْتَوَى فِي زَمَانِ رَسُولِ اللَّهِ صلى الله عليه وسلم مِنَ الذُّبَحَةِ فَمَاتَ .
Yahya related to me from Malik that Yahya ibn Said said, "I heard that Sad ibn Zurara cauterized himself because of a pain in the throat accompanied by blood and he died
Sahih Lighairihi (Salim al-Hilali)
Muwatta Malik 1723 · Book 50, Hadith 13