Is it permissible to say to a police or armed forces officer: "Yes, Sayyid (master)!"?
It is permissible to say the "Yes," but it is not permissible to say the "Sayyid." When some of Sahabah (Companions) said to the Prophet (peace be upon him), "You are our Master," he (peace be upon him) said,
"The Master is Allah, the Blessed and Exalted."
(Related by Abu Dawud with a Sahih [authentic] Sanad [chain of narrators])
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.