The Prophet ﷺ said: Do not call a hypocrite sayyid (master), for if he is a sayyid, you will displease your Lord, Most High. (Using translation from Abū Dāʾūd 4977)
لَا تَقُولُوا لِلْمُنَافِقِ سَيِّدَنَا فَإِنَّهُ إنْ يَكُ سَيِّدَكُمْ فَقَدْ أَسْخَطْتُمْ رَبَّكُمْ