'A'isha reported Allah's Messenger (ﷺ) as saying: The 'ajwa' dates of 'Aliya' contain heating effects and these are antidote in the early morning.
Explanation & Benefits
Shaykh Maulana Abdul Aziz Alvi
Hadith Commentary: Benefits and Issues: From this hadith, it is understood that a special cure has been placed specifically in the ‘Ajwah dates of the upper region of Madinah.
Source: Tuhfat al-Muslim: Commentary on Sahih Muslim, Page: 5341