The Book Concerning the Use of Correct Words
40/3. Chapter:
Ruling On Using The Words 'Abd And Amah (For Slaves) And Mawla And Sayyid (For Masters)
Sahih Muslim
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 " .
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.
Reference : Sahih Muslim 2249bIn-book reference : Book 40, Hadith 14USC-MSA web (English) reference : Book 27, Hadith 5592