What is the meaning of "Al-Mu'ayyanah" and what is the explanation of the Hadith: "Were it not that dogs are a nation among nations, I would have commanded the killing of every black, utterly black dog, so kill Al-Mu'ayyanah among dogs, for it is the accursed from among the jinn"?

The Hadith: "Were it not that dogs are a nation among nations, I would have commanded the killing of every pitch-black dog; so kill the 'mu'ayyanah' among dogs, for they are cursed by the jinn," is weak due to the weakness of one of its narrators, Abd al-Malik ibn al-Khattab ibn Ubayd Allah ibn Abi Bakrah al-Thaqafi al-Basri. The correct version of the Hadith is: "Were it not that dogs are a nation among nations, I would have commanded their killing; so kill every pitch-black dog."

As for the phrase: "so kill the 'mu'ayyanah' among dogs, for they are cursed by the jinn," its meaning is that the "mu'ayyanah" dog is one with wide eyes, or one that appears to have two eyes above its own, which is often found in black dogs. It was also said: they are dogs that afflict people with the evil eye out of envy. This Hadith, with both its phrases, is weak and cannot be used as proof.