مختصر صحيح بخاري
Mukhtasar Sahih Bukhari
Book of Aqeeqah
Chapter on Fara' (firstborn animal sacrifice).
Narrated by Abu Huraira (may Allah be pleased with him) from the Prophet (peace and blessings of Allah be upon him) that he said: "There is no (prescribed) practice of Fara’ and ‘Atirah in Islam." Fara’ was the first offspring of a she-camel, which the polytheists used to slaughter in the name of their idols, and ‘Atirah was a kid goat that used to be sacrificed in the first ten days of Rajab."
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