Praise be to Allaah.
There is nothing wrong with slaughtering
chicken by means of modern machines, so long as they are sharp and they cut
the throat and the oesophagus. If the machine slaughters a number of
chickens at once, then it is sufficient for the person who is operating the
machine to say Bismillaah just once when he starts operating it, with the
intention of slaughtering them, provided that the person who is operating
the machine is a Muslim or a kitaabi (one of the people of the Book, i.e., a
Jew or a Christian).
Fataawa al-Lajnah al-Daa’imah
With regard to what you say about the method
of washing them, if washing them in this way takes away the blood and they
come out clean, then they are taahir (pure). But if some traces of blood are
left on them, then they must be washed before eating.
It should be noted that the blood which is
naajis (impure) is that which is poured forth, i.e., that which flows from
the chicken when it is slaughtered. As for the blood that remains in the
veins after slaughtering and comes out when it is cleaned and cut up, this
blood is taahir (pure) and there is nothing wrong with eating it because it
is not blood that has been poured forth.
Allaah says (interpretation of the
“Say (O Muhammad
صلى الله عليه وسلم): “I find not in that
which has been revealed to me anything forbidden to be eaten by one who
wishes to eat it, unless it be Maytah (a dead animal) or blood poured forth
(by slaughtering or the like), or the flesh of swine (pork); for that
surely, is impure”
And Allaah knows best.