On the words used between people
A correction about vocabulary, given twice.
لاَ يَقُلْ أَحَدُكُمُ اسْقِ رَبَّكَ أَطْعِمْ رَبَّكَ وَضِّئْ رَبَّكَ . وَلاَ يَقُلْ أَحَدُكُمْ رَبِّي . وَلْيَقُلْ سَيِّدِي مَوْلاَىَ وَلاَ يَقُلْ أَحَدُكُمْ عَبْدِي أَمَتِي . وَلْيَقُلْ فَتَاىَ فَتَاتِي غُلاَمِي
None of you should say: my slave, my slave girl. All of you are the slaves of Allah. Let him say: my young man, my young woman. And let the servant not say: my lord, but rather: my master.
The full narration
Abu Huraira reported Allah's Messenger (ﷺ) so many ahadith and one of them is this that Allah's Messenger (ﷺ) said:None of you should say: Supply drink to your lord, feed your lord, help your lord in performing ablution, and none of you should say: My Lord. He should say: My chief, my patron; and none of you should say: My bondman, my slave-girl, but simply say: My boy, my girl, my servant
Source
Ṣaḥīḥ Muslim · 5877
- Agreed upon as authentic (al-Bukhārī / Muslim)