‏الأشربة : Hadeeth No:5112 Jabir reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Food for one (person) sqffices two, and food for two (persons) suffices four persons and food for four persons suffices eight persons....

‏الزكاة : Hadeeth No:2357 Abu Huraira reported: Whenever the Prophet of Allaah (sallAllaahu alayhi wa sallam) was presented with food, he asked about it, If he was told that it was a gift, he ate out of that, and if he was told that it was a sadaqa he did not eat out of that....