Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) narrates: The Prophet Muhammad (peace be upon him) said to a man: I have been commanded to declare the day of sacrifice as Eid. Allah Almighty has declared it as Eid for this Ummah. A man asked: O Messenger of Allah (peace be upon him)! What is your opinion if I only find a female animal for sacrifice, should I sacrifice it? The Prophet Muhammad (peace be upon him) said: No, you should cut your hair, trim your nails, remove the hair below the navel, and shorten your mustache. All these things will be counted as your sacrifice in the sight of Allah Almighty.