Hajj refers to your set of prescribed activities you will have to perform within the holy land of Mecca. The Hajj pilgrimage is held during the month of Zulhijjah each and every year. This is certainly also considered as an annual accumulating of planet Muslims. هُوَ ٱلَّذِى بَعَثَ فِى ٱلْأُمِّيِّـۧنَ https://islamarticle.com/blogs/happy-muslim-marriage/