Sayyiduna Abu Dharr Ghifari (may Allah be pleased with him) reports that the Prophet (peace and blessings be upon him) said: "The prayer is interrupted by a black dog, a woman, and a donkey." Sayyiduna Abdullah bin Samit (may Allah be pleased with him) says: I asked, why is the black dog more severe than the red or yellow one? Sayyiduna Abu Dharr (may Allah be pleased with him) replied: O nephew! I also asked the Prophet (peace and blessings be upon him) the same question as you have asked me, and he said: "The black dog is a devil."