Abu Hurairah [رضي الله عنه] who said that the Messenger of Allāh [ﷺ] said:

❝A blessed Sahoor for the believer is dates.❞

[Collected By Abu Dawūd, Ibn Hibban | Sh. Al-Albaani: ‘Sahīh’ In Targheeb, (No. 1072) | Researched In Saheehah, (No. 562) | Translated By Abbas Abu Yahya]