Although the major acts of Hajj are normally performed in the first ten days of Dhulhijjah, yet the whole period starting from the first of Shawwal up to the 10th of Dhulhijjah is held to be the period of Hajj because some acts of Hajj can be performed any time during this period.
For example, an ‘Umrah performed before Shawwal cannot be treated as the ‘Umrah of Tamattu: while the ‘Umrah performed in Shawwal can be affiliated to the Hajj.
For these reasons these three months have been named as the ‘months of Hajj’ and the month of Shawwal has the distinction of being the first of these.
EVENTS OF THE MONTH OF SHAWWAL
1st Eid ul Fitr
6th Battle of Hunain
8th Destruction of Jannatul Baqee
9th Battle of Ahzab/Khandaq
23rd Battle of Uhud
25th Death anniversary of Imam Ja’fer As-Sadiq (pbuh)
30th Death anniversary of Ibrahim (pbuh) son of Prophet Muhammad (pbuh)