Ruling On Using The Words 'Abd And Amah (For Slaves) And Mawla And Sayyid (For Masters) Sahih Muslim 2249 b

وَحَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا جَرِيرٌ، عَنِ الأَعْمَشِ، عَنْ أَبِي صَالِحٍ، عَنْ أَبِي، هُرَيْرَةَ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏لاَ يَقُولَنَّ أَحَدُكُمْ عَبْدِي ‏.‏ فَكُلُّكُمْ عَبِيدُ اللَّهِ وَلَكِنْ لِيَقُلْ فَتَاىَ ‏.‏ وَلاَ يَقُلِ الْعَبْدُ رَبِّي ‏.‏ وَلَكِنْ لِيَقُلْ سَيِّدِي ‏"‏ ‏.‏
Translation
Abu Huraira reported Allah's Messenger (ﷺ) as saying

None of you should say: My bondman, for all of you are the bondmen of Allah, but say: My young man, and the servant should not say: My Lord, but should say: My chief.