Sunan Ibn Majah
3254
Sahih+3

It was narrated from Jabir bin ‘Abdullah that the Messenger of Allah (ﷺ) said:“The food of one person is sufficient for two, the food of two is sufficient for four, and the food for four is sufficient for eight.”

SahihAl-Albani
SahihMuhammad Fouad Abd al-Baqi