Abu Huraira (may Allah be pleased with him) reports that the Messenger of Allah (peace and blessings be upon him) said: The food of two persons suffices for three, and the food of three suffices for four.

Narrated Jabir bin Abdullah (may Allah be pleased with him): I heard the Messenger of Allah (peace and blessings of Allah be upon him) say: The food of one is sufficient for two, the food of two is sufficient for four, and the food of four is sufficient for eight.