Suwaid bin Mu'arrur says that I saw Sayyiduna Abu Dharr (may Allah be pleased with him) wearing a pair of clothes, and his slave was also wearing a similar pair. We asked him about this, so he said: I once spoke harshly to a man (my slave), and he complained about me to the Prophet (peace and blessings be upon him). The Prophet (peace and blessings be upon him) said to me: "Did you reproach him about his mother?" I said: Yes! Then he said: "Your servants are your brothers, whom Allah has placed under your authority. So, whoever has his brother under his authority, he should feed him from what he himself eats, and clothe him with what he himself wears. And do not burden them with work beyond their capacity. If you assign them a heavy task, then help them with it."