Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bukhari:5771Abū Salamah > Abū Hurayrah Baʿd

Messenger of Allah 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).  

البخاري:٥٧٧١وَعَنْ أَبِي سَلَمَةَ سَمِعَ أَبَا هُرَيْرَةَ بَعْدُ يَقُولُ

قَالَ النَّبِيُّ ﷺ 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