Kurban Bayrami or the Festival of Sacrifice calls upon every Muslim, who can afford, to sacrifice an animal - a goat , sheep or a cow-in commemoration of Abraham's offer of his son's life at the command of God, who was substituted by a ram.
According to Muslim belief, Prophet Abraham was put to a tough test by God to prove his faith. He was asked to sacrifice his son Isaac. God stays Abraham's hand at the last moment and provides a ram for sacrifice instead, praising Abraham for his faithfulness.