al-Hasan bin Muslim bin Yanaq الحسن بن مسلم بن يناق · Chapters on Medicine

“I heard my paternal uncle Yahya – and I have not seen a man among us like him – tell the people that Sa'd bin Zurarah, who was the grandfather of Muhammad through his mother, was suffering from pain in his throat, known as croup. The Prophet (ﷺ) said: ‘I shall do my best for Abu Umamah.’ Such that I will be excused (i.e., free of blame if he is not healed). And he cauterized him with his own hand,…

“A man with sick camels should not let them graze or drink alongside healthy ones.”