رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 754
The Book About the Etiquette of Eating
Merit of Sharing Food
عَنْ أبى هُرَيْرَةَ رضى اللَّه عَنْهُ قَالَ : قَالَ رَسُولُ اللَّهِ صَلَّى اللَّه عَلَيْهِ وَسَلَّمَ :طَعَامُ الاِثْنَيْنِ كَافِي الثَّلاَثَةِ، وَطَعَامُ الثَّلاَثَةِ كَافِي الأَرْبَعَةِ". ((مُتَّفَقٌ عَلَيْهِ))
Abu Hurairah (May Allah be pleased with him) reported: The Messenger of Allah (ﷺ) said, "The food of two persons suffices for three persons, and the food of three persons suffices for four persons." [Al-Bukhari and Muslim].
Riyad as-Salihin, 754