Nazar (also written as nadhr), it is making a vow in the name of Allah. As an illustration, a person may make a vow of this type โO Allah, if you alleviate such and such a person from their sickness, I promise to sacrifice one sheep/goat etcโ, then the person who makes a vow is obliged to fulfill the sacrifice if the person is healed. In this case, it is wajib to give away all the uncooked meat.
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