Manasik e Hajj Aur Umrah by Al-Shaikh Mohammad Bin Saleh

The Hajj حج‎ is an annual Islamic pilgrimage to Mecca, and a mandatory religious duty for Muslims that must be carried out at least once in their lifetime by all adult Muslims who are physically and financially capable of undertaking the journey, and can support their family during their absence.

It is one of the five pillars of Islam, alongside Shahadah, Salat, Zakat, and Sawm. The gathering during Hajj is considered the largest annual gathering of people in the world. The state of being physically and financially capable of performing the Hajj is called istita'ah, and a Muslim who fulfills this condition is called a mustati.

The Hajj is a demonstration of the solidarity of the Muslim people, and their submission to God (Allah). The word Hajj means "to intend a journey", which connotes both the outward act of a journey and the inward act of intentions. The Umrah (Arabic: عمرة‎) is a pilgrimage to Mecca, Saudi Arabia, performed by Muslims that can be undertaken at any time of the year, in contrast to the Hajj. In Arabic, Umrah means "to visit a populated place".

In the Sharia, Umrah means to perform Tawaf round the Kaaba and Sa'i between Al-Safa and Al-Marwah, after assuming Ihram (a sacred state), either from a Miqat like Zu 'l-Hulafa, Juhfa, Qarnu 'l-Manāzil, Yalamlam, Zāt-i-'Irq, Ibrahīm Mursīa, or a place in Hill.

It is sometimes called the 'minor pilgrimage' or 'lesser pilgrimage', the Hajj being the 'major' pilgrimage and which is compulsory for every able-bodied Muslim who can afford it.

The Umrah is not compulsory but highly recommended.