The lawyer, who recently praised the Mumbai terror attacks, urged all Muslims to reject traditional Christmas celebrations, claiming that they are forbidden by Allah.
The 41-year-old shocked Christians and even those of his own faith by branding yuletide festivities as "the pathway to hellfire".
Choudary, who is chairman of the Society of Muslim Lawyers, ruled out all celebrations, including having a Christmas tree, decorating the house or eating turkey.
In the sermon posted on an Islamic website, he said: "In the world today many Muslims, especially those residing in western countries, are exposed to the evil celebration Christmas.
"Many take part in the festival celebrations by having Christmas turkey dinners.
"Decorating the house, purchasing Christmas trees or having Christmas turkey meals are completely prohibited by Allah.
"Many still practise this corrupt celeb
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