Using the term "master" for a created being and adding "our master" in prayer and the call to prayer

The questioner:
Is it permissible to say "O Master" or "Our Master Muhammad" or "Our Master 'Umar"?

The Shaykh:
Regarding the use of the term "master" for a created being. There is scholarly disagreement on this, and the correct view is that it is permissible, except when the person is present; in that case, one should not say "O Master" to him as a form of praise, nor say "You are our master" as a form of praise, because one does not praise a person while he is present. When they said to the Prophet (peace and blessings be upon him), "You are our master" or "The son of our master," he said, "The master is only Allah" . Therefore, the correct view is that it is not permissible to call a person "master" while he is present as a form of praise. However, if he is absent, there is no harm in saying so-and-so is the master, or so-and-so is the master of such-and-such tribe, the head of the tribe, its master. The Prophet (peace and blessings be upon him) said to the Ansar when Sa'd ibn Mu'adh (may Allah be pleased with him) approached, when he approached, he said , meaning to your leader and your chief. Reconciling the hadiths, it is not said in the presence of the person, but in his absence, there is no harm. And it is said "Our Master Muhammad (peace and blessings be upon him)," because he (peace and blessings be upon him) said , so it is said "Our Master Muhammad (peace and blessings be upon him)." As for "Our Master 'Umar" or "Our Master Abu Bakr," this phrase was not used by the Salaf; it was not used by the Salaf. "Our Lady Aisha," "Our Lady Fatima," meaning using the term "Lady" for women, this was not reported from the Salaf. Yes.

Another questioner:
Or the word "master" in thoughts and supplications, which has not been reported.

The Shaykh:
That is possible.

Another questioner:
O Allah, send blessings upon our master Muhammad.

The Shaykh:
In the tashahhud, it is not permissible to say "O Allah, send blessings and peace upon our master Muhammad," because this has not been reported in the prayer, and we do not add anything to the prayer that has not been reported from the Messenger (peace and blessings be upon him). Also in the sermon, in the Friday sermon, "our master" is not added to it because it has not been reported. And likewise in the adhan.
"I bear witness that Muhammad is the Messenger of Allah," you do not say "I bear witness that our master," because this has not been reported. And whoever adds "our master" in the adhan is an innovator, because the reported remembrances are specific and one must restrict oneself to them, and not add anything to them. The sa'y.