(54) باب لاَ عَدْوَى
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "No 'Adha." Abu Huraira also said: The Prophet (ﷺ) said, "The cattle suffering from a disease should not be mixed up with healthy cattle (or said "Do not put a patient with a healthy person as a precaution.") Abu Huraira also said: Allah's Messenger (ﷺ) said, "No 'Adha." A bedouin got up and said, "Don't you see how camels on the sand look like deer but when a mangy camel mixes with them, they all get infected with mange?" On that the Prophet (ﷺ) said, "Then who conveyed the (mange) disease to the first camel?"
Reference: Sahih al-Bukhari 5773-5775
In-book reference: Book 76, Hadith 87
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 71, Hadith 667