For Hajj are the months well known. If any one undertakes that duty therein, Let there be no obscenity, nor wickedness, nor wrangling in the Hajj. And whatever good ye do, (be sure) Allah knoweth it. And take a provision (With you) for the journey, but the best of provisions is right conduct. So fear Me, o ye that are wise.
The traditional Arabian months of Dhul-Qa’dah, Dhul-Hijjah and Muharram were set aside for pilgrimage, though the actual Hajj rites are fixed in the first ten days of Dhul-Hijjah.
Emerick, Yahiya. The Meaning of the Holy Qur’an in Today’s English (p. 829). Unknown. Kindle Edition.