The tenth day of Muharram is known as the Day of Ashura, part of the Mourning of Muharram for Shia Muslims and a day of fasting for Sunni Muslims. The practice of fasting during Ashura stems from the hadith that Musa (Moses) and his people obtained a victory over the Egyptian Pharaoh on the 10th day of Muharram; accordingly Muhammad asked Muslims to fast on this day and on the day prior, the Day of Tasu’a.