The Day of Arafah is an Islamic holiday. It begins on the evening of the 9th day of Dhu al-Hijjah in the Islamic Calendar, and ends on the evening of the following day. Immediately after Arafah lands Eid al-Adha, or the Feast of the Sacrifice. Arafah is important because it marks the second day of the Hajj pilgrimage—an annual pilgrimage to Mecca. During Arafah pilgrims will visit a hillside called Mount Arafah, where Muhammad gave one of his final sermons.
How to Observe Day of Arafah
1. Fast (if you didn't go on Hajj)
On Arafah day, Muslims who didn't go to Hajj will fast to repent for the year's sins.
2. Visit Mount Arafah
Pilgrims who did go to Hajj will celebrate the day on Mount Arafah— also known as the Mountain of Mercy—and reflect on Muhammad's farewell sermon.
3. Recite the Arafah prayer
Muslims will recite the Du'a Arafah from noon to sunset. The Arafah prayer is considered one of the most important in the Shia faith.
Why Day of Arafah is Important
A. It holds Qur'anic significance
Muslims maintain that part of the verse announcing Islam's perfection was revealed to the people upon this day.
B. It honors Mount Arafah
Mount Arafah is a granite hill, to the southest of Mecca. It is the place where Muhammad delivered his Farewell Sermon to those Muslims who had followed him on his final Hajj.
C. It has its own prayer
Du'a Arafah is a Shia prayer recited on the Day of Arafah, first recorded in the 7th century.