Volume 2, Book 26, Number 662:
Narrated ‘Aisha:
The people used to fast on ‘Ashura (the tenth day of the month of Muharram) before the fasting of
Ramadan was made obligatory. And on that day the Ka’ba used to be covered with a cover. When Al –
lah made the fasting of the month of Ramadan compulsory, Allah’s Apostle said, “Whoever wishes to
fast (on the day of ‘Ashura’) may do so; and whoever wishes to leave it can do so.”