Allah's Apostle said, "Five kinds of animals are harmful and could be killed in the Haram (Sanctuary). These are: the crow, the kite, the scorpion, the mouse and the rabid dog."

Ibn 'Umar (Allah be pleased with them) reported Allah's Messenger (may peace be upon him) giving command for killing dogs.

In the hadith transmitted on the authority of Yahya, he (the Holy Prophet) permitted the keeping of dogs for (the protection of) herds, for hunting and (the protection of) cultivated land.

The Prophet said, "The bad example is not for us. He who takes back his present is like a dog that swallows back its vomit."

The Prophet said, "One who takes back his gift (which he has already given) is like a dog that swallows its vomit."

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).

Allah's Apostle said, "It is not sinful of a person in the state of Ihram to kill any of these five animals: The scorpion, the rat, the rabid dog, the crow and the kite."

The Prophet said, "Five kinds of animals are mischief-doers and can be killed even in the Sanctuary: They are the rat the scorpion, the kite (a type of predatory bird), the crow and the rabid dog."

Allah's Apostle said, "If someone keeps a dog neither for guarding livestock, nor for hunting, his good deeds will decrease (in reward) by two Qirats a day.'

The Prophet said, "The one who takes back his gift is like a dog swallowing its own vomit, and we (believers) should not act according to this bad example."

Allah's Apostle said, "If somebody keeps a dog, he loses one Qirat (of the reward) of his good deeds everyday, except if he keeps it for the purpose of agriculture or for the protection of livestock. "

I heard the Prophet saying, "If someone keeps a dog neither for hunting, nor for guarding livestock, the reward (for his good deeds) will be reduced by two Qirats per day."

Once Gabriel promised the Prophet (that he would visit him, but Gabriel did not come) and later on he said, "We, angels, do not enter a house which contains a picture or a dog."

Aba Mas'ud al-Ansari (Allah be pleased with him) reported that Allah's Messenger (may peace be upon him) forbade the charging of price of the dog, and earnings of a prostitute and sweets offered to a kahin.

The Prophet said, "A man felt very thirsty while he was on the way, there he came across a well. He went down the well, quenched his thirst and came out. Meanwhile he saw a dog panting and licking mud because of excessive thirst. He said to himself, "This dog is suffering from thirst as I did." So, he went down the well again and filled his shoe with water and watered it. Allah thanked him for that deed and forgave him. The people said, "O Allah's Apostle! Is there a reward for us in serving the animals?" He replied: "Yes, there is a reward for serving any animate (living being)." (See Hadith No. 551)

The Prophet said, "While a dog was going round a well and was about to die of thirst, an Israeli prostitute saw it and took off her shoe and watered it. So Allah forgave her because of that good deed."

The Prophet forbade the use of the price of blood and the price of a dog, the one who takes (eats) usury the one who gives usury, the woman who practises tattooing and the woman who gets herself tattooed.