Volume 7 · Book 71 · Hadith 649
Narrated 'Abdullah bin 'Umar: Allah's Apostle said, "There is neither 'Adha (no contagious disease is conveyed to others without Allah's permission) nor Tiyara, but an evil omen may be in three a woman, a house or an animal."
— Sahih Bukhari, Volume 7, Book 71: Medicine, Hadith #649