مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3829
Musnad of Abdullah bin Mas'ood
It was narrated that `Abdullah (رضي الله عنه) said: A man was brought to the Prophet (ﷺ) on - whom cautery had been performed and he said: "Cauterize him or use hot rocks."
Musnad Ahmad 3852Its Isnad is saheeh]