Introduction

The pilgrimage to Mecca (hajj) is one of the fundmental obligations in Islamic laws.
The holy Qur’an has clearly mentioned this obligation.
Almighty Allah says in His holy Book: “And it is for the sake of Allah [a duty] upon the people to do the pilgrimage of the House—whosoever has the ability [to travel] to it.
And whosoever is ungrateful, then surely Allah is free from need of the universe.” (2:196) The Almighty has compared the negligence of hajj to ingratitude because of its importance.

Hajj is one of the five pillars on which Islam is based.
In a noble hadith, Imam al-Baqir (a.s) said, “Islam is based on five pillars: on prayer (salat), alms (zakat), pilgrimage (hajj), fasting (sawm), and devotion [to the Ahlul Bayt] (wilaya)." ⁽¹⁾

Imam ‘Ali bin Abi Talib (a.s) advised about hajj by saying, “Do not neglect the pilgrimage to the House of your Lord; otherwise you will perish.
" ⁽²⁾ Imam as-Sadiq (a.s) said, “If the people neglect the pilgrimage to the House, the chastisement will overwhelm them and they would not be warned [about it].” ⁽³⁾ This is so because neglecting hajj while the person is in a position to fulfill all its conditions is a great sin.
A hadith says, “When a person is capable of doing the pilgrimage but does not do it, he has indeed flouted a law from the laws of Islam.” ⁽⁴⁾ Another noble hadith says, “One who keeps postponing hajj until he dies, Allah will resurrect him on the Day of Judgement as a Jew or a Christian.
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