The ruling on the dhikr recited after the adhan for the mu'adhdhin

Question:
I am a mu'adhdhin. Is it obligatory for me to make the reported supplication after the adhan, or is it not obligatory for the mu'adhdhin?

Answer:
The supplication is not obligatory; it is a recommended practice (sunnah) for the mu'adhdhin and for others. The supplication is a recommended practice (mustahabb), not obligatory for the mu'adhdhin after he finishes the adhan, nor for others. So, after finishing, the mu'adhdhin says: “O Allah, send blessings and peace upon the Messenger of Allah,” or “O Allah, send blessings upon Muhammad, and upon the family of Muhammad.” Then he says: “O Allah, Lord of this perfect call and the established prayer, grant Muhammad the intercession and the excellence, and raise him to the praiseworthy station which You have promised him. Indeed, You do not break Your promise.”
And so, every Muslim who hears the adhan says this, and it is recommended for every Muslim woman to say this. Whoever hears the adhan, whether a man or a woman, responds to the mu'adhdhin by saying what the mu'adhdhin says, except at the “hi’alah” (the call to prayer and success). At “Hayya ‘ala al-salah” (Come to prayer) and “Hayya ‘ala al-falah” (Come to success), he says: “There is no power and no strength except with Allah.” As for the rest, he says the same as him. If he says “Allahu Akbar” (Allah is the Greatest), he says “Allahu Akbar.” If he says “I bear witness that there is no god but Allah,” he says “I bear witness that there is no god but Allah,” and so on. Then, after finishing, he sends blessings upon the Prophet (peace and blessings be upon him) and says: “O Allah, Lord of this perfect call and the established prayer, grant Muhammad the intercession and the excellence, and raise him to the praiseworthy station which You have promised him.”
The Prophet (peace and blessings be upon him) said in an authentic hadith: Al-Bukhari narrated it in his Sahih. Al-Bayhaqi added at the end: with a good chain of narration.
And in the other hadith, some people said: “O Messenger of Allah! The mu'adhdhins have an advantage over us.” He said: And in the other wording, he said: This is a great favor.
So, it is recommended for the believing man and woman, when they hear the mu'adhdhin, to respond to the mu'adhdhin exactly as he says, except when he says: “Hayya ‘ala al-salah, Hayya ‘ala al-falah” (Come to prayer, Come to success), then they say: “There is no power and no strength except with Allah.” Then, after finishing, they send blessings upon the Prophet (peace and blessings be upon him) by saying: “O Allah, send blessings and peace upon the Messenger of Allah,” or “O Allah, send blessings upon Muhammad, and upon the family of Muhammad, as You sent blessings upon the family of Ibrahim, and bless Muhammad, and the family of Muhammad, as You blessed the family of Ibrahim. Indeed, You are Praiseworthy and Majestic.” Any type of the Ibrahimic form of sending blessings is sufficient.
Then he says: “O Allah, Lord of this perfect call and the established prayer, grant Muhammad the intercession and the excellence, and raise him to the praiseworthy station which You have promised him.” It is better to add This is the best, and it is a recommended practice (sunnah), not obligatory.

The presenter: May Allah reward you with good, and may He do you good.