Dogs in Islam
Several hadiths in the two most authoritative Sunni collections — Sahih Muslim and Sunan Abu Dawood — deal extensively with dogs: recording a decree by Muhammad to kill them, explaining that black dogs are devils, and ruling that a black dog passing in front of a man during prayer nullifies the prayer. Each hadith is shown with its original Arabic text, an English translation, a link to the authoritative source, and a neutral, factual explanation.
Gabriel's Refusal and the Decree to Kill Dogs
Two parallel narrations — one from Maimunah (a wife of the Prophet) recorded in Sahih Muslim, and one from Ibn Abbas recorded in Sunan Abu Dawood — report the same event: the angel Gabriel fails to appear as promised, Muhammad discovers a puppy under his bed, removes it, and Gabriel then explains that angels cannot enter a home containing a dog or a picture. On the strength of this explanation, Muhammad orders all dogs in Medina to be killed.
Sahih Muslim 2105 — Gabriel Refuses House with Dog; Dogs Ordered Killed
Maimunah reported that one morning Allah's Messenger was silent with grief. Maimunah said: Allah's Messenger, I find a change in your mood today. Allah's Messenger said: Gabriel had promised me that he would meet me tonight, but he did not meet me. By Allah, he never broke his promises, and Allah's Messenger spent the day in this sad [mood]. Then it occurred to him that there had been a puppy under their cot. He commanded that it was turned out. He then took some water in his hand and sprinkled it at that place. When it was evening, Gabriel met him, and he said to him: you promised me that you would meet me the previous night. He said: Yes, but we do not enter a house in which there is a dog or a picture. Then on that very morning, Muhammad commanded the killing of the dogs until he announced that the dog kept for the orchards should also be killed, but he spared the dog meant for the protection of extensive fields.
— Sahih Muslim, Volume 5, Book 24 (USC-MSA numbering)This narration presents the occasion for Muhammad's decree to kill dogs: the angel Gabriel refused to visit because a puppy was in the house. The decree was broad — kill all dogs in Medina, including those guarding orchards — with only dogs guarding large fields exempted. The theological rationale: angels cannot coexist with dogs (or pictures) in a dwelling.
The hadith records a mass extermination of animals motivated not by disease control but by Gabriel's visitation requirements. Dogs are a common domestic animal worldwide; many Islamic scholars today hold them to be ritually impure (najis), a ruling derived substantially from such hadiths.
Sunan Abu Dawood 4157 — Gabriel Refuses House with Dog (Parallel Narration)
Narrated Ibn Abbas: Maimunah, wife of the Prophet reported him as saying: Gabriel promised to visit me last night, but he did not visit me. Then it occurred to him that there was a pup under his bed. So he ordered and it was turned out. He then got water in his hand and sprinkled it on its place. When Gabriel met him, he said: We do not enter a house which contains a dog or a picture. When the morning came, the Prophet ordered to kill dogs. He ordered to kill the dog which guarded a small orchard, and left the dog which guarded the big orchard.
— Sunan Abu Dawood, Book 34, Hadith 138A parallel narration of the same event from Ibn Abbas rather than Maimunah. It corroborates the Sahih Muslim version: Gabriel's refusal → discovery of the puppy → its removal → Gabriel's explanation → mass killing. Graded Sahih (authentic) by al-Albani.
This hadith became the basis for a significant legal ruling. Four of the five major Sunni schools (Maliki, Shafi'i, Hanbali, and a minority Hanafi position) classify dogs as ritually impure (najis al-'ayn), requiring ritual washing if a dog licks a vessel or person. This has no parallel in Judaism (which does not classify dogs as inherently impure) or Christianity.
The Black Dog as a Devil
Two further hadiths — one from Sahih Muslim, one from Sunan Abu Dawood — address the specific status of black dogs. Both narrations link black dogs to the devil (shaytan), with one adding the ruling that a black dog passing in front of a man at prayer invalidates that prayer.
Sahih Muslim 510a — Black Dog is a Devil; Breaks Prayer
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 distinguishes 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.
— Sahih Muslim, Book 4, Hadith 1032 (USC-MSA numbering)This hadith equates three things that break a man's prayer if they pass in front of him without a barrier: a donkey, a woman, and a black dog. The grouping has been debated within Islamic scholarship, with some arguing it applies only to specific contexts or pre-pubescent girls.
It also identifies the black dog specifically as a shaytan (devil) — not as a metaphor but as a direct statement. No equivalent status is ascribed to other colours, making this the basis for stronger prohibitions on black dogs in particular within some classical legal opinions.
Sunan Abu Dawood 2840 — Kill Dogs, Confine to Black Ones (Devils)
Narrated Jabir ibn Abdullah: The Prophet of Allah ordered to kill dogs, and we were even killing a dog which a woman brought with her from the desert. Afterwards he forbade to kill them, saying: Confine yourselves to the type which is black.
— Sunan Abu Dawood, Book 16, Hadith 2840 (USC-MSA numbering)This narration records a revision: after an initial broad command to kill all dogs — applied even to a woman's travelling companion — the order was narrowed to black dogs specifically. The reason (from Muslim 510a) is that black dogs are devils. The instruction presents an empirical claim about a common animal that is neither testable nor verifiable.
Taken together, the dog hadiths establish: dogs (especially black ones) are theologically dangerous, associated with the devil, capable of preventing angelic visitation and nullifying prayer, and subject to extermination. This contrasts with the Quran, which mentions dogs neutrally — the Companions of the Cave had a dog (18:18), and hunting dogs are permitted (5:4) — suggesting the harshest rulings derive from prophetic tradition rather than Quranic text.