Messenger of Allah ﷺ said, "The food for two persons is sufficient for three, and the food of three persons is sufficient for four persons." (Using translation from Bukhārī 5392)  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ «طَعَامُ الِاثْنَيْنِ كَافِي الثَّلَاثَةِ وَطَعَامُ الثَّلَاثَةِ كَافِي الْأَرْبَعَةِ»  

“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.” (Using translation from Ibn Mājah 3254)  

أَنَّ النَّبِيَّ ﷺ قَالَ «طَعَامُ الْوَاحِدِ يَكْفِي الِاثْنَيْنِ وَطَعَامُ الِاثْنَيْنِ يَكْفِي أَرْبَعًا وَطَعَامُ الْأَرْبَعَةِ يَكْفِي ثَمَانِيَةً»