Ibn Ishaq محمد بن إسحاق بن يسار‎ · Chapters on Medicine

“I saw the Bedouins asking the Prophet (ﷺ): ‘Is there any harm in such and such, is there any harm in such and such?’ He said to them: ‘O slaves of Allah! Allah has only made harm in that which transgresses the honor of one’s brother. That is what is sinful.’ They said: ‘O Messenger of Allah! Is there any sin if we do not seek treatment?’ He said: ‘Seek treatment, O slaves of Allah! For Allah does not create…

“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,…

“Whoever applies kohl, let him do it an odd number of times. Whoever does that has done well, and whoever does not, it does not matter.”

“On one of the wings of a fly there is a poison and on the other is the cure. If it falls into the food, then dip it into it, for it puts the poison first and holds back the cure.”