Abdullah bin Samit narrates from Sayyiduna Abu Dharr Ghifari (may Allah be pleased with him) that the Prophet Muhammad (peace and blessings be upon him) said: "When there is nothing in front of a person as much as the back part of a saddle (as a sutrah), then a woman, a donkey, and a black dog (passing in front of him) break his prayer." The narrator says: O (Sayyiduna) Abu Dharr (may Allah be pleased with him)! Why a black dog? Why not a red dog or a yellow dog? He replied: O my nephew, I also asked the Prophet Muhammad (peace and blessings be upon him) about what you have asked me, and he said: The black dog is a devil.