Why is Muharram called Haram?
What do Sunnis do on Muharram?
In Sunni Islam, ninth and tenth of Muharram are days for voluntary fasting, strongly encouraged by Sunni jurists. While not endorsed by all Sunni scholars, Ashura is further viewed as a day of thanksgiving (shukr) to God, a joyous occasion, celebrated through pious acts and acceptable expressions of delight.