But the fasting was optional after Ramadan fasting was made obiligatory. It is narrated by Abu Hurairah that the Prophet Muhammad said, “The most virtuous fasting after the month of Ramadan is (in) Allah’s month Al-Muharram.Muharram is a month of remembrance. Ashura, which literally means the “Tenth” in Arabic, refers to the tenth day of Muharram.