At Ar-Rabadha I met Abu Dhar who was wearing a cloak, and his slave, too, was wearing a similar one. I asked about the reason for it. He replied, "I abused a person by calling his mother with bad names." The Prophet said to me, 'O Abu Dhar! Did you abuse him by calling his mother with bad names You still have some characteristics of ignorance. Your slaves are your brothers and Allah has put them under your command. So whoever has a brother under his command should feed him of what he eats and dress him of what he wears. Do not ask them (slaves) to do things beyond their capacity (power) and if you do so, then help them.' "  

لَقِيتُ أَبَا ذَرٍّ بِالرَّبَذَةِ وَعَلَيْهِ حُلَّةٌ وَعَلَى غُلاَمِهِ حُلَّةٌ فَسَأَلْتُهُ عَنْ ذَلِكَ فَقَالَ إِنِّي سَابَبْتُ رَجُلاً فَعَيَّرْتُهُ بِأُمِّهِ فَقَالَ لِيَ النَّبِيُّ ﷺ يَا أَبَا ذَرٍّ أَعَيَّرْتَهُ بِأُمِّهِ إِنَّكَ امْرُؤٌ فِيكَ جَاهِلِيَّةٌ إِخْوَانُكُمْ خَوَلُكُمْ جَعَلَهُمُ اللَّهُ تَحْتَ أَيْدِيكُمْ فَمَنْ كَانَ أَخُوهُ تَحْتَ يَدِهِ فَلْيُطْعِمْهُ مِمَّا يَأْكُلُ وَلْيُلْبِسْهُ مِمَّا يَلْبَسُ وَلاَ تُكَلِّفُوهُمْ مَا يَغْلِبُهُمْ فَإِنْ كَلَّفْتُمُوهُمْ فَأَعِينُوهُمْ  

The Prophet ﷺ said, "When your servant brings your food to you, if you do not ask him to join you, then at least ask him to take one or two handfuls, for he has suffered from its heat (while cooking it) and has taken pains to cook it nicely."  

عَنِ النَّبِيِّ ﷺ قَالَ إِذَا أَتَى أَحَدَكُمْ خَادِمُهُ بِطَعَامِهِ فَإِنْ لَمْ يُجْلِسْهُ مَعَهُ فَلْيُنَاوِلْهُ أُكْلَةً أَوْ أُكْلَتَيْنِ أَوْ لُقْمَةً أَوْ لُقْمَتَيْنِ فَإِنَّهُ وَلِيَ حَرَّهُ وَعِلاَجَهُ