Through the same chain, it is narrated from Sayyiduna Samurah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) used to say: "Whoever among you prepares food enough for two men, it suffices for three; whoever prepares it for three, it suffices for four; and whoever prepares it for four, it suffices for five; and so on in number (onward)."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 7014