Narrated Yala ibn Umayyah: The Prophet ﷺ said: Hoarding up food (to sell it at a high price) in the sacred territory is a deviation (from right to wrong).
Explanation & Benefits
Shaykh Umar Farooq Saeedi
Benefits and Issues:
Although the hadith is weak,
according to other narrations, hoarding while people are in need and necessity
is among the major sins (kaba'ir).
Especially in the Haram (Sacred Mosque), it is an even worse act.
(And whoever intends therein [i.e., in the Haram] to commit deviation by wrongdoing – We will make him taste of a painful punishment) ( al-Hajj: 25)
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 2020