The reason why a cow suffices as a sacrifice for five individuals is that those whom the Samiri commanded to worship the calf were five people. They were the ones who slaughtered the cow that Allah سبحانه وتعالى, Blessed and Exalted, commanded to be slaughtered. They were Azinunah, his brother Midhunah, his nephew, his daughter, and his wife. A young sheep (jadh') is acceptable as a sacrifice, but a young goat (jadh') is not because the young sheep can impregnate, whereas the young goat cannot. It is permissible for a person to give the skin of the sacrificial animal to the one who skins it, as Allah سبحانه وتعالى, Mighty and Majestic, said: "Eat from it and feed others" (Surah Al-Hajj, 22:28). The skin is neither eaten nor fed, so this is allowed in sacrifice but not in offerings (hady). Commander of the Faithful Imam Ali ibn Abi Talib عليه السلام did not spend a night in Makkah after migrating from it until his martyrdom, because he disliked spending the night in a land from which the Messenger of Allah سبحانه وتعالى, peace and blessings be upon him and his family, had migrated.