Fasting on the Day of Arafah

Sayyiduna Abu Qatadah (Radi Allahu Anhu) narrates the following statement of the Holy Prophet (SallAllahu Alayhi wa Sallam), "I have presumption from Allah that the fast of Arafah (9th Zul-Hijjah) removes the sins of the previous year and the next year." [Sahih Muslim, Page 590, Hadith 196]

Sayyidatuna Ayeshah Siddiqah (Radi Allahu Anha) narrated that Rasoolullah (SallAllahu Alayhi wa Sallam) said, "The fast on the day of Arafah (9th Zul-Hijjah) is equivalent to one thousand fasts." [Shu’ab al-Iman, Vol. 3, Page 357, Hadith 3764]

However, this fast is Makruh for the one who is in the plains of Arafat to perform Hajj as Sayyiduna Ibn Khuzaymah (Radi Allahu Anhu) narrates with reference to Sayyiduna Abu Hurayrah (Radi Allahu Anhu) that the Holy Prophet (SallAllahu Alayhi wa Sallam) prohibited (Hajj Pilgrims) to fast on the day of Arafah (9th Zul-Hijjah) in the plains of Arafat. [Sahih Ibn Khuzaymah, Vol. 3, Page 292, Hadith 2101]