Do not burden a slave with work which he is incapable

Ma'rur said, "We passed by Abu Dharr and he was wearing a garment and his slave had a robe on. We said, 'Why do you not take this and give this man something else instead of the robe?' He replied that the Prophet ﷺ said, 'Allah has put your brothers under your authority. If someone has his brother under his authority, he should feed him from what he eats and clothe him from what he wears and not burden him with what will be too much for him. If he burdens him with what will be too much for him, he should help him.'"

حَدَّثَنَا مُسَدَّدٌ، قَالَ: حَدَّثَنَا يَحْيَى، عَنِ الأَعْمَشِ قَالَ: قَالَ مَعْرُورٌ: مَرَرْنَا بِأَبِي ذَرٍّ وَعَلَيْهِ ثَوْبٌ، وَعَلَى غُلاَمِهِ حُلَّةٌ، فَقُلْنَا: لَوْ أَخَذْتَ هَذَا وَأَعْطَيْتَ هَذَا غَيْرَهُ، كَانَتْ حُلَّةٌ، قَالَ: قَالَ النَّبِيُّ ﷺ: إِخْوَانُكُمْ جَعَلَهُمُ اللَّهُ تَحْتَ أَيْدِيكُمْ، فَمَنْ كَانَ أَخُوهُ تَحْتَ يَدِهِ، فَلْيُطْعِمْهُ مِمَّا يَأْكُلُ، وَلْيُلْبِسْهُ مِمَّا يَلْبَسُ، وَلاَ يُكَلِّفْهُ مَا يَغْلِبُهُ، فَإِنْ كَلَّفَهُ مَا يَغْلِبُهُ فَلْيُعِنْهُ عَلَيْهِ.