Narrated Abu Hurayrah (May Allah be pleased with him) Allah’s Messenger (peace be upon him) said,

“The ajwah dates come from Paradise and contain a cure for poison; truffles are a kind of manna and their juice is a medicine for the eye.”
(Tirmidhi #1127)

Narrated Sad (May Allah be pleased with him) I heard Allah’s Apostle (peace be upon him) saying,

“Whoever takes seven ‘Ajwa dates in the morning will not be effected by magic or poison on that day.
” (Bukhari, Vol7, Bk 71, #671)