Abu Hurayra reported that the Prophet (ﷺ) said, "None of you should say 'my slave ('abdi or amati)' and a slave should not say, 'my lord (rabbi or rabbati)'. They should say, 'my boy' or 'my girl' (fatayi and fatati) and 'my master' or 'mistress' (sayyidi and sayyidati)'. All of you are slaves, and the Lord is Allah, Almighty and Exalted."
Reference: Al-Adab Al-Mufrad 210 In-book : Book 9, Hadith 55 English translation : Book 9, Hadith 210
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