Shaikh Muqbil Ibn Hadi al-Wadi’ee rahimahullah:
Question: What is the ruling on the reciting Takbir in unison on ‘eid?
Answer: “This has not been reported from the Prophet (ﷺ). So we do not advise this and if anyone did this we advise them not to do it. And we cannot rule that this person is an innovator and in Allah aid is sought.”
Question: What is the ruling on sending peace and blessings upon the Prophet and his wives between the Takbirat of eid?
Answer: “I do not know anything reported on this from the Prophet (ﷺ)”
[https://www.muqbel.net/fatwa.php?fatwa_id=2650]
Shaikh Ibn ul-‘Uthaymeen rahimahullah was asked:
Question: It is found in some Masaajid in the city on the day of eid before the prayer that the Imam makes Takbir through the microphone and the congregants make takbir with him. So what is the ruling on this action?
Answer: “The form that the questioner mentioned was not reported from the Prophet (ﷺ) and his Companions. The Sunnah is for every one to make takbir themselves”
[Fatawa Arakan ul-Islam pg. 305]
He was also asked:
Question: We have in some Masaajid where the Muadhin makes takbir on the microphone and the people repeat it behind him. So is this considered an innovation or is it allowed?
Answer: “This is an innovation because it is well-known from the guidance of the Prophet (ﷺ) when it comes to the remembrances that everyone remembers Allah, the Exalted by himself. So it is not necessary to leave the guidance of the Prophet (ﷺ) and his Companion”.
[Asilah wa Ajwibah fi Salatul Eidayan pg. 31]
Translated by
Faisal Ibn Abdul Qaadir Ibn Hassan
Abu Sulaymaan