Narrated `Abdullah bin `Umar: Allah's Apostle said, "there is neither 'Adha nor Tiyara, and an evil omen is only in three: a horse, a woman and a house." (See the foot-note of Hadith No. 649)
Hadith Referenceصحيح البخاري / كتاب الطب / 5772
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة
Abu Huraira also said: The Prophet 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.")
Hadith Referenceصحيح البخاري / كتاب الطب / 5774
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة
Abu Huraira also said: Allah's Apostle 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 said, "Then who conveyed the (mange) disease to the first camel?"
Hadith Referenceصحيح البخاري / كتاب الطب / 5775
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة