The phrase said when the iqamah is called, "Aqamat-ha": (May Allah establish it and make it lasting)

Q: When the iqamah is called, the imam of the mosque stands in the mihrab and says: (May Allah establish it and make it lasting, O Allah, Lord of this perfect call and this established prayer, grant Muhammad the intercession and the high rank, and raise him to the praiseworthy station that You promised him, for You do not break Your promise). Is this a transmitted supplication? Or is there another one? Or is this the best?

A: This supplication is said in the adhan: When the mu'adhdhin finishes the adhan, he sends blessings upon the Prophet (peace and blessings be upon him) and says: This is how the hadith came from the Messenger of Allah (peace and blessings be upon him), as narrated by al-Bukhari in his Sahih from Jabir ibn Abdullah (may Allah be pleased with them both). Likewise, the one who is not the mu'adhdhin but hears the adhan says this; based on the saying of the Prophet (peace and blessings be upon him): It is agreed upon that it is authentic. And if he adds: it is correct, because it is established from the narration of al-Bayhaqi (may Allah have mercy on him). And likewise, it is said after the iqamah, because it is the second adhan, based on the saying of the Prophet (peace and blessings be upon him): .
As for the phrase: (May Allah establish it and make it lasting), a weak hadith has come regarding it, and it is better to say: (The prayer has been established) like the mu'adhdhin: (The prayer has been established, the prayer has been established) instead of: (May Allah establish it and make it lasting); because the phrase: (May Allah establish it and make it lasting) is not established from the Prophet (peace and blessings be upon him), but rather one should say what the Prophet (peace and blessings be upon him) said: meaning: he says: (The prayer has been established, the prayer has been established). And in the adhan of Fajr, when he says: (Prayer is better than sleep), he says: (Prayer is better than sleep) similarly. As for (Hasten to the prayer, hasten to success), he says: (There is no power and no strength except with Allah); because a report is authentic from the Prophet (peace and blessings be upon him) that he used to say at (Hasten to the prayer): and at (Hasten to success) he says: narrated by Muslim from the hadith of 'Umar ibn al-Khattab (may Allah be pleased with him).