In the Name of God (bismillah) must be pronounced when the...
In the Name of God (bismillah) must be pronounced when the intention to slaughter is amde, and the animal must be lying with its face towards the "qiblah". All four main blood vessels of the neck must be completely severed above the vocal chords. (There is a special method of killing a camel called "nahr", which may also be used for other animals when "dhabih" is not possible.
It should be noted finally that all namilas whose blood does not spurt are unlawful (haram) except fish which have scales. A hadith of Muhammad ibn Nu'man Ahwal, Mu'min at-Taq, says, "One day I went in to see Abu Hanifah. I saw there was a pile of books in front of him.
Abu Hanifah said, 'Do you see all these books?' I said, Yes.' He said, 'They are all to do with divorce.' I said, God has made us free from all your books by one single verse of the Quran, "Oh Prophet, (say to the believers), 'When you divorce (your) women, divorce at their prescribed period, and reckon the 'iddah (exactly).' "He said, 'Well then, have you ever asked your friend Ja'far ibn Muhammad (al-Imam as-Sadiq (a.s.)) about the seacow?' I said, 'Yes, he said that every sea-animal with scales, even if it be a 'sea-) camel or a (sea-) cow, can be eaten, and that if it has no scales it is unlawful to eat.'" 5 13.
The Nature of Foodstuffs Animals: There are three kinds of animals - animals of the land, animals of the sea and animals of the air. It has just been pointed out that, in general, the only animals of the sea which are lawful are those which have scales. The eggs of such fish are also lawful. Of land animals, only a few species can be lawful the camel, the cow, the sheep or goat, the wild cow or buffalo, the mountain sheep or goat, the gazelle, the deer.
The meat of horses, mules and donkeys is not approved of (makruh). Animals which eat najis substances, such as excrement, become haram, but they can be purified by "istibra"' (keeping itaway from najis eatables for a specific period). All kinds of carnivourous animals are unlawful. Rabbits, foxes, badgers and mongooses are all unlawful. Insects, reptiles and amphibians like worms, snails, cockroaches, scorpions, wasps, bees, snakes, frogs etc. are all forbidden; only the locust can be eaten.
Among birds, those which feed on flesh such as hawks and eagles, are completely forbidden.