Ash'ath bin Abi al-Ash'atha أشعث بن أبي الشعثاء · Chapters on Food

It was narrated from Sa’d, the freed slave of Abu Bakr – and Sa’d used to serve the Messenger of Allah (ﷺ) and he liked this Hadith – that the Prophet (ﷺ) forbade eating two dates at once.

“I heard Salman, when he was forced to eat food, say: ‘It is sufficient for me that I heard the Messenger of Allah (ﷺ) say: The people who most eat their fill in this world will be the most hungry on the Day of Resurrection.’”