Narrated Abu Hurairah (RA):

Allah's Messenger (ﷺ) said: "When one's servant serves him with his food, if he does not make him sit down with him (and eat) he should give him one or two morsels (of it)." [Agreed upon, and the wording is al-Bukhari's].

وَعَنْ أَبِي هُرَيْرَةَ ‏- رضى الله عنه ‏- قَالَ: قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ إِذَا أَتَى أَحَدَكُمْ خَادِمُهُ بِطَعَامِهِ, فَإِنْ لَمْ يُجْلِسْهُ مَعَهُ, فَلْيُنَاوِلْهُ لُقْمَةً أَوْ لُقْمَتَيْنِ } مُتَّفَقٌ عَلَيْهِ, وَاللَّفْظُ لِلْبُخَارِيِّ [1]‏ .‏