Jabir ibn 'Abdullah said, "The Messenger of Allah ﷺ advised that slaves be well treated. He said, 'Feed them from what you eat and clothe them from what you wear and do not punish Allah's creation.'"

سَمِعْتُ جَابِرَ بْنَ عَبْدِ اللهِ يَقُولُ كَانَ النَّبِيُّ ﷺ يُوصِي بِالْمَمْلُوكِينَ خَيْرًا وَيَقُولُ أَطْعِمُوهُمْ مِمَّا تَأْكُلُونَ وَأَلْبِسُوهُمْ مِنْ لَبُوسِكُمْ وَلاَ تُعَذِّبُوا خَلْقَ اللهِ