Marur bin Suwayd reported,

We passed by Abu Dharr at Rabadhah, and he was wearing a cloak, and his servant was wearing one just like it.We said, "Abu Dharr, if you combined the two, it would make a complete suit."He replied, "There was an exchange of words between me and one of my brothers. His mother was non-Arab, and I taunted him about his mother. He complained about me to the Prophet ﷺ. When I met the Prophet ﷺ, he said, 'Abu Dharr, you are a man in whom there is still some of the ways of pre-Islamic ignorance.'I said, 'Messenger of Allah, whoever insults men, they insult his father and his mother.'He said, 'Abu Dharr, you are a man in whom there is still some of the ways of pre-Islamic ignorance. They are your brothers. Allah has placed them under your authority, so feed them from what you eat, clothe them from what you wear, and do not burden them with what overwhelms them. If you do burden them, then help them.'"

Muslim 4313

Sahih

حدثنا أبو بكر بن أبي شيبة حدثنا وكيع حدثنا الأعمش

عن المعرور بن سويد قال

مررنا بأبي ذر بالربذة وعليه برد وعلى غلامه مثله فقلنا يا أبا ذر لو جمعت بينهما كانت حلة فقال إنه كان بيني وبين رجل من إخواني كلام وكانت أمه أعجمية فعيرته بأمه فشكاني إلى النبي ﷺ فلقيت النبي ﷺ فقال يا أبا ذر إنك امرؤ فيك جاهلية قلت يا رسول الله من سب الرجال سبوا أباه وأمه قال يا أبا ذر إنك امرؤ فيك جاهلية هم إخوانكم جعلهم الله تحت أيديكم فأطعموهم مما تأكلون وألبسوهم مما تلبسون ولا تكلفوهم ما يغلبهم فإن كلفتموهم فأعينوهم

مسلم 4313صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Oaths
Chapter
Feeding slaves from what one eats, clothing them from what one wears, and not burdening them with what overwhelms them
Numbering
Darussalam 4313
Muslim 4313