Hajj refers to the list of prescribed functions you will need to complete on the holy land of Mecca. The Hajj pilgrimage is held inside the month of Zulhijjah each and every year. This is also considered as an annual gathering of earth Muslims. هُوَ ٱلَّذِى بَعَثَ فِى ٱلْأُمِّيِّـۧنَ رَسُولًا https://islamarticle.com/blogs/beautiful-quran-verses/