It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) said: "It is the right of the slave that he should be given food and drink, and he should not be ordered to do any work which he does not have the strength to do."
Hadith Referenceالادب المفرد / كتاب / 192
Hadith Gradingالألبانی:صحيح
Hadith Takhrij«صحيح : أخرجه مسلم ، كتاب الإيمان ، باب إطعام المملوك مما يأكل ........ : 1662 - الإرواء : 2172»
Abu Huraira (may Allah be pleased with him) reports that the Messenger of Allah (peace and blessings of Allah be upon him) said: "Food and clothing are the rights of the slave, and he should only be made to work as much as he has the strength for."
It is narrated from Ma’rur that we passed by Sayyiduna Abu Dharr (may Allah be pleased with him) and saw that he was wearing an ordinary garment while his slave was wearing a (similar) suit. We said: If you took this suit from the slave and gave him some other clothes, it would make a matching set for you. He said that the Prophet (peace and blessings of Allah be upon him) said: “These are your brothers whom Allah has placed under your authority, so whoever has his brother under him should feed him what he himself eats, and clothe him with what he himself wears. And do not burden them with work that overpowers them, and if you do burden them beyond their capacity, then help them.”