مُسْنَدُ أَحْمَدَ
Musnad Ahmad 1571
Musnad Abu Ishaq Sa'd bin Abi Waqqas
It was narrated that Sa’d said: The Messenger of Allah (ﷺ) said: "Whoever eats seven ajwah dates in the morning, no poison or witchcraft will harm him that day."
Musnad Ahmad 1571Sahih (Darussalam) [ al-Bukhari (5445) and Muslim (2047)]