Dhu al-Hijjah, also spelled Zu al-Hijjah, is the twelfth and final month in the Islamic calendar. It is a very sacred month in the Islamic calendar, one in which the Ḥajj takes place as well as the Festival of the Sacrifice

Hijri Date Events
1 Dhu l-Hijja Marriage of Imam Ali (a) to Lady Fatima al-Zahra (a)
6 Dhu l-Hijja Martyrdom of Imam al-Jawad (a)
7 Dhu l-Hijja Martyrdom of Imam al-Baqir (a)
8 Dhu l-Hijja Departure of Imam al-Husayn (a) from Mecca toward Karbala
9 Dhu l-Hijja The Day of 'Arafa
9 Dhu l-Hijja Martyrdom of Muslim b. 'Aqil
10 Dhu l-Hijja Eid al-Adha
14 Dhu l-Hijja Giving Fadak to Lady Fatima al-Zahra (a) by the Prophet (s)
15 Dhu l-Hijja Birth of Imam al-Hadi (a)
18 Dhu l-Hijja Eid al-Ghadir
22 Dhu l-Hijja Martyrdom of Maytham al-Tammar
24 Dhu l-Hijja The day of Mubahala
24 Dhu l-Hijja The day in which Imam Ali (a) gave away his ring as charity in ruku' and revelation of the Verse of Wilaya about his action