عَنْ هَمَّامِ بْنِ مُنَبِّهٍ، أَنَّهُ سَمِعَ أَبَا هُرَيْرَةَ ـ رضى اللّٰه عنه ـ يُحَدِّثُ عَنِ النَّبِيِّ صلى اللّٰه عليه وسلّم أَنَّهُ قَالَ: لاَ يَقُلْ أَحَدُكُمْ أَطْعِمْ رَبَّكَ، وَضِّئْ رَبَّكَ، اسْقِ رَبَّكَ. وَلْيَقُلْ سَيِّدِي مَوْلاَىَ. وَلاَ يَقُلْ أَحَدُكُمْ عَبْدِي أَمَتِي. وَلْيَقُلْ فَتَاىَ وَفَتَاتِي وَغُلاَمِي.
Hammam bin Munabbih narrated that he heard Hazrat Abu Hurairahra say that the Holy Prophetsa said: “None of you should say to his servant, ‘Feed your lord [rabbaka],’ or ‘Help your lord with ablution,’ or ‘Give water to your lord.’ Instead, he should say, ‘My master [sayyidi]’ or ‘My guardian [mawlay].’ Similarly, none of you should refer to his servant as ‘my slave’ [‘abdi] or ‘my slave girl’ [‘amati], but should say, ‘my young man [fata’i],’ ‘my young woman [fatati],’ or ‘my boy [ghulami].’”
(Sahih al-Bukhari, Kitab ul-‘itq, Bab karahiyati t-tatawula ‘ala r-raqiq, Hadith 2552)