Dhul Qa'dah

Dhul Qa'dah : is the elevent month of the Islamic Calendar
It is a month amongst the months of Hajj. It is the first among the four sacred months (Ash'hur al Harum).

Literal Meaning: Qa'dah means to rest. The Arabs used to stop fighting when this month set in and stayed home. This is from among the sacred months.
However, no specific rules are prescribed for this month, except for those persons performing Hajj and are in the Sacred Cities of Makkah Mukkaramah and Madinah tal Munawwara and are required to follow the Rules of Hajj.