Fiqh-us-Sunnah Volume 5, Hajj and ‘Umrah, Fiqh 5.132A.

Allah says in the Qur’an (22.25): “And any whose purpose therein is profanity or wrongdoing, them will We cause to taste of a most grievous penalty.” Abu Daw’ud reported from Musa bin Bazhan that he said, “I went to Ya’la bin Amayyah, who said, ‘the Prophet (peace be upon him) said, “Hoarding food in the Sacred Mosque is committing an act of profanity.” Bukhari in his At-Tarikh Al-Kabir reported from ‘Umar that he said, “Hoarding food is a profane act.”

Ahmad reported that Ibn ‘Umar came to Ibn Az-Zubair who was sitting in Al-Hijr (The area attached to Ka’bah and also called Hijr Isma’il) and said, “O Ibn Az-Zubair! Be mindful of acts of profanity while in the Haram of Allah! I bear witness that I heard the Messenger of Allah (peace be upon him), saying, ‘A man of Quraish shall violate its sanctity.”‘ The words of another report are “a man from the Quraish will commit acts of profanity in it. His sins will be equivalent to the sins of humans and Jinns combined, if weighed against them. Be mindful that you are not that man.”

Mujahid said that good deeds multiply (many fold) in Makkah as do the sins. Ahmad was once asked, “Are the sins recorded more than once?” He replied, “No, except in Makkah because of the sanctity of that city.”