The stronger view is that fasting on Ashura by itself is not disliked.
If someone were to ask: Why is the tenth day the most emphatic of the days of Muharram?
The answer is that it was the day on which Allah saved Moses and his people, and destroyed Pharaoh and his people, as is authentically established from the Prophet, peace and blessings be upon him. This hadith also indicates that time was reckoned among the previous nations by lunar months, not by the Gregorian calendar, for the Messenger, peace and blessings be upon him, informed us that the tenth day of Muharram was the day on which Allah destroyed Pharaoh and his people and saved Moses and his people. (1)
His statement, “and the first nine days of Dhu al-Hijjah,” means that fasting the first nine days of Dhu al-Hijjah is recommended.
The first nine days of Dhu al-Hijjah begin with its first day and end with the ninth day, which is the Day of Arafah. The pronunciation al-Hijjah, with a kasrah on the letter ha, is more eloquent than pronouncing it with a fathah; whereas the reverse is true of al-Qadah.
The evidence for their recommendation is the Prophet’s statement, peace and blessings be upon him: “There are no days in which righteous deeds are more beloved to Allah than these ten days.” (2) Fasting is among righteous deeds.
Two apparently conflicting hadiths have been narrated concerning these days: one stating that the Messenger, peace and blessings be upon him, did not fast these nine days, (3) and the other that he would