The Day of Arafah – What to do on this day.
The Day of ʿArafah (9th of Dhul Ḥijjah) is the greatest day of ḥajj. It is the day on which sins are forgiven, souls are released from the Hell-fire, and duʿās are readily accepted. This day is also special because it was the day Allah c bestowed upon our Ummah’s greatest gift: He perfected the religion of Islam and completed His favour upon us.
ʿUmar b. al-Khaṭṭāb h narrated: ‘Once a Jew said to me: “O leader of the believers! There is a verse in your (Holy) Book which you all read; had it been revealed to us Jews, we would have taken that day (on which it was revealed) as a day of celebration.”’ ʿUmar h asked him: “Which verse?” The Jew replied: “Today I have perfected your religion for you, completed My blessing upon you, and chosen Islam as your religion.” (5:3)
ʿUmar h replied: “No doubt, we know the day and the place when this verse was revealed to the Prophet g. It was Friday and the Prophet g was standing at ʿArafah (i.e. the Day of ḥajj).” (Bukhārī)