Lunar Hijri Months
This month is the only permissible time for ihram of hajj al-tamattu'. Literally, Dhu l-Hijja means "owner of hajj" which indicates the close relation of the month to hajj. Hajj rituals usually start in the 9th of Dhu l-Hijja, and finish in the 13th of this month.
This month is one of the eminent and great months of the year according to Islamic teachings.