Is it permissible, or what is the ruling on saying: "O Master of Masters," or "You are the Master of Masters"?
Machine translationRead the Arabic original
Question:
He says: Honorable Shaykh, may Allah grant you success, is it permissible, or what is the ruling on saying "O Master of Masters" or "You are the Master of Masters"?
Answer:
This is Allah (Exalted and Majestic is He). This is Allah; it does not apply to anyone but Allah, just as "King of Kings" does. Yes.
He says: Honorable Shaykh, may Allah grant you success, is it permissible, or what is the ruling on saying "O Master of Masters" or "You are the Master of Masters"?
Answer:
This is Allah (Exalted and Majestic is He). This is Allah; it does not apply to anyone but Allah, just as "King of Kings" does. Yes.
Source
قناة «العلامة الدكتور صالح الفوزان»، [669 /1350] هل يجوز، أو ما حكم قول: يا سيد الأسياد، أو أنت سيد الأسياد؟ الشيخ صالح الفوزان — youtube.com
The Arabic text is a machine transcription of the audio recording.