“Pilgrimage to this House is an obligation by Allah upon whoever is able among the people.”
(Surah Ali-’Imran, 3:97)
“Call people to the pilgrimage. They will come to you on foot and on every lean camel from every distant path. so they may obtain the benefits (in-store) for them,
and pronounce the Name of Allah on appointed days over the sacrificial animals He has provided for them.
So eat from their meat and feed the desperately poor.”
(Surah Al-Hajj, 22:27-28)
“Whoever performs Hajj to this house without having intimate relations or committing sin, then he will return pure of sin like the day he was born from his mother.”
(Sahih Al-Bukhari)