'Aishah (May Allah be pleased with her) reported:
Messenger of Allah ﷺ was eating with his six Companions when a desert Arab came and ate up the food in two mouthfuls. Messenger of Allah ﷺ said, "Had he mentioned the Name of Allah, it would have sufficed for all of you."

[At-Tirmidhi].

وعن عائشة رضى الله عنها قالت: كان رسول الله ﷺ يأكل طعاماً في ستة من أصحابه، فجاء أعرابى، فأكله بلقمتين. فقال رسول الله ﷺ "أما إنه لو سمى لكفاكم".