Nasihah (Advice): The fast of Arafah-Expiation for two years of sins
Sayyiduna Qataadah Radhiyallahu Anhu reports that Nabi Sallallahu Alayhi Wasallam said: “Fasting on the Day of Arafah, I hope from Allah, expiates for the sins of the previous year and the following year.”(Tirmidhi)
Question and Answer:
Q. What is the status of fasting during the ten days of Zul-Hijjah?
A. It is forbidden to fast on Eid-ul-Adha (the 10th of Zul-Hijjah) and the three days of Tashreeq (three days after Eid-ul-Adha: 11th, 12th and 13th of Zul-Hijjah). (Al Ikhtiyaar Li Ta’leelil Mukhtaar 1/125).
Apart from these days, it is recommended (Mustahab) to fast on the first nine days of Zul-Hijjah and, particularly, on the 9th of Zul-Hijjah, the Day of Arafah. (Hindiyyah 1/201)
And Allah Ta’ala Knows Best
Mufti Ebrahim Desai