تمر العجوة
A dark, dense date variety native to Madinah, eaten first thing in the morning as a protective and fortifying practice.
مَنْ تَصَبَّحَ بِسَبْعِ تَمَرَاتٍ عَجْوَةً لَمْ يَضُرَّهُ ذَلِكَ الْيَوْمَ سُمٌّ وَلَا سِحْرٌ
“Whoever eats seven Ajwa dates in the morning will not be harmed that day by poison or sorcery.” (meaning, not a literal translation)
Classical commentators read this protective effect as specific to Madinan Ajwa of the Prophet's era; later scholars differ on whether it extends to other date varieties or requires the specific soil and cultivar. Dates more broadly are noted throughout the hadith corpus as the food the Prophet ﷺ broke his fast with.