Hari Raya Haji, also known as Eid al-Adha, is an important Islamic festival celebrated by Muslims worldwide. It commemorates the willingness of Prophet Ibrahim (Abraham) to sacrifice his son Isma'il (Ishmael) in obedience to God's command. The festival occurs on the 10th day of Dhu al-Hijjah, the last month of the Islamic lunar calendar, coinciding with the annual Hajj pilgrimage in Mecca. During Hari Raya Haji, Muslims perform a special prayer at mosques or open fields, followed by the ritual sacrifice of animals, usually sheep, goats, or cows. The meat is then distributed among family, friends, and those in need, emphasizing the values of charity and community. This celebration fosters a sense of unity and gratitude among Muslims.