It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: The right of the slave is that he should be provided with food and clothing, and do not burden them with any work beyond their capacity.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 7364
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا إسناد جيد، م: 1662.