Hadith #3876 (Sunan Abi Dawud)
Book: Medicine (Kitab Al-Tibb)
Narrator(s): al-Zuhri ابن شهاب الزهري‎, محمد بن مسلم, Masdad bin Masrhad مسدد بن مسرهد بن مسربل, Sufyan bin Sa‘id Ath-Thawri سفيان الثوري, Ubaydullah bin 'Abdullah bin 'Utba عبيد الله بن عبد الله بن عتبة بن مسعود, Umm Qays bint Mihsan al-Asadi
Grade: Sahih

He who has a morning meal of seven ‘Ajwah dates will not suffer from any harm that day through poison or magic.

Source: https://parallelquran.com/hadith/sunan-abi-dawud-3876/