DOGS ANNULLING PRAYER
From Bukhari Vol. 1, #490
Narrated 'Aisha: "The things which annul the prayers were mentioned before me. They said, "Prayer is annulled by a dog, a donkey and a woman (if they pass in front of the praying people)." I said, "You have made us (i.e. women) dogs. I saw the Prophet praying while I used to lie in my bed between him and the Qibla. Whenever I was in need of something, I would slip away, for I disliked to face him.""
From Muslim Number 1032
Abu Dharr reported: The Messenger of 'Allah said: When any one of you stands for prayer and there is a thing before him equal to the back of the saddle that covers him and in case there is not before him (a thing) equal to the back of the saddle, his prayer would be cut off by (passing of an) ass, woman, and black Dog. I said: O Abu Dharr, what feature is there in a black dog which distinguish it from the red dog and the yellow dog? He said: O, son of my brother, I asked the Messenger of Allah as you are asking me, and he said: The black dog is a devil.
From Abu Dawud Number 0704:
Narrated Abdullah ibn Abbas:
Ikrimah reported on the authority of Ibn Abbas, saying: I think the Apostle of Allah said: When one of you prays without a sutrah, a dog, an ass, a pig, a Jew, a Magian, and a woman cut off his prayer, but it will suffice if they pass in front of him at a distance of over a stone's throw.
COMMENT
These hadith state that if a dog passes in front of people praying it annuls their prayer. Annul means, "to reduce to nothing", or "to make ineffective or inoperative". If a group of people are praying and a dog walks in-between them and the Kaba (in Mecca), then their prayer is made null and void.
DOGS STOP THE ANGELS
From Bukhari Vol. 4, #448
Narrated Abu Talha: "I heard Allah's Apostle saying; "Angels (of Mercy) do not enter a house wherein there is a dog or a picture of a living creature (a human being or an animal).""
From Bukhari Vol. 7, #843
Narrated Salim's father: "Once Gabriel promised to visit the Prophet but he delayed and the Prophet got worried about that. At last he came out and found Gabriel and complained to him of his grief (for his delay). Gabriel said to him, "We do not enter a place in which there is a picture or a dog.""
From Muslim, #5276:
Abu Huraira reported Allah's Messenger as saying: Angels do not accompany the travelers who have with them a dog and a bell.
From Muslim, #5279:
Abu Huraira reported Allah's Messenger as saying: "The bell is the musical instrument of Satan."
COMMENT
The story behind these hadith was mentioned earlier. A little puppy stopped an angel from entering the house because it was "unclean". Note that angels do not enter a place with a dog, or accompany people who travel with a dog.
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