Sahih al-Bukhari 5771

Arabic

وَعَنْ أَبِي سَلَمَةَ، سَمِعَ أَبَا هُرَيْرَةَ، بَعْدُ يَقُولُ قَالَ النَّبِيُّ صلى الله عليه وسلم ‏ "‏ لاَ يُورِدَنَّ مُمْرِضٌ عَلَى مُصِحٍّ ‏"‏‏.‏ وَأَنْكَرَ أَبُو هُرَيْرَةَ حَدِيثَ الأَوَّلِ قُلْنَا أَلَمْ تُحَدِّثْ أَنَّهُ لاَ عَدْوَى فَرَطَنَ بِالْحَبَشِيَّةِ‏.‏ قَالَ أَبُو سَلَمَةَ فَمَا رَأَيْتُهُ نَسِيَ حَدِيثًا غَيْرَهُ‏.‏

English translation

Narrated Abu Huraira: Allah's Messenger (ﷺ) said: The cattle (sheep, cows, camels, etc.) 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)

Reference: Sahih al-Bukhari 5771, Book of Medicine. English translation by Dr. Muhammad Muhsin Khan.